# US 2014/0153433 A1 · Resource Scheduling Method, Radio Access Device, and Communications System

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- Number: US 2014/0153433 A1
- Document ID: US20140153433A1
- Status: Published application
- Kind: A1
- Application number: 14/176,661
- Filed: 2014-02-10
- Published: 2014-06-05
- Earliest claimed: 2012-08-09
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Rong Zhou
- Web page: https://patentgrep.com/patent/US20140153433A1

## CPC

- H04W 72/542: using measured or perceived quality
- H04W 72/541: using the level of interference
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Embodiments of the present invention disclose a resource scheduling method, a radio access device, and a communications system. In a solution provided in an embodiment of the present invention, a radio access device first measures an interference parameter value corresponding to each uplink resource block of a first communications system; when a first terminal accessing the first communications system needs to transmit uplink data, measures a channel condition parameter value of an uplink channel of the first terminal; if a current channel condition of the uplink channel of the first terminal is relatively good, allocates an uplink resource block, whose interference parameter value is greater than a first interference threshold, of the first communications system to the first terminal; and if relatively poor, allocates an uplink resource block, whose interference parameter value is less than the first interference threshold, of the first communications system to the first terminal.

## Claims

### Claim 1

A resource scheduling method comprising:
measuring an interference parameter value corresponding to each uplink resource block of a first communications system, wherein the interference parameter value is used to represent a degree of interference on a receive end of a second communications system when a terminal of the first communications system transmits data on a corresponding uplink resource block;
if a first terminal accessing the first communications system needs to transmit uplink data, measuring a channel condition parameter value of an uplink channel of the first terminal, wherein the channel condition parameter value is used to represent a current channel condition of the uplink channel of the first terminal; and
if the channel condition parameter value of the uplink channel of the first terminal is greater than a preset first channel condition parameter threshold, preferentially allocating an uplink resource block meeting a first scheduling condition for the first terminal to transmit the uplink data, and if a current channel condition parameter value of the uplink channel of the first terminal is less than the preset first channel condition parameter threshold, preferentially allocating an uplink resource block meeting a second scheduling condition for the first terminal to transmit the uplink data, wherein the uplink resource block meeting the first scheduling condition is an uplink resource block, whose interference parameter value is greater than a preset first interference threshold, of the first communications system, and the uplink resource block meeting the second scheduling condition is an uplink resource block, whose interference parameter value is less than the first interference threshold, of the first communications system.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the measuring an interference parameter value corresponding to each uplink resource block of a first communications system comprises:
measuring an additional maximum power reduction A_MPR value corresponding to each uplink resource block of the first communications system, wherein the uplink resource block meeting the first scheduling condition is an uplink resource block, whose maximum power reduction A_MPR value is greater than a first A_MPR threshold, of the first communications system; and the uplink resource block meeting the second scheduling condition is an uplink resource block, whose maximum power reduction A_MPR value is less than the first A_MPR threshold, of the first communications system.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the interference parameter value is used to represent a degree of interference, caused by a non-linear uplink transmission product generated when the terminal of the first communications system transmits data on the corresponding uplink resource block, on the receive end of the second communications system.

### Claim 4 (depends on 1)

The method according to claim 1, wherein:
the uplink resource block meeting the first scheduling condition is an uplink resource block, whose interference parameter value is greater than the preset first interference threshold and less than a fifth interference threshold, of the first communications system, wherein the fifth interference threshold is greater than the first interference threshold; and/or,
the uplink resource block meeting the second scheduling condition is an uplink resource block, whose interference parameter value is less than the first interference threshold and greater than a sixth interference threshold, of the first communications system, wherein the first interference threshold is greater than the sixth interference threshold.

### Claim 5

A resource scheduling method comprising:
measuring an interference parameter value of interference, caused by a non-linear uplink transmission product of a second terminal accessing a first communications system, on a downlink frequency band of the first communications system; and
if downlink data needs to be transmitted to the second terminal, preferentially allocating a corresponding downlink resource block, whose interference parameter value is less than a second interference threshold and with which the non-linear uplink transmission product of the second terminal interferes, in the downlink frequency band to transmit the downlink data to the second terminal.

### Claim 6 (depends on 5)

The method according to claim 5, wherein:
the preferentially allocating a corresponding downlink resource block, whose interference parameter value is less than a second interference threshold and with which the non-linear uplink transmission product of the second terminal interferes, in the downlink frequency band to transmit the downlink data to the second terminal comprises: preferentially allocating a corresponding downlink resource block, whose interference parameter value is less than the second interference threshold and greater than a seventh interference threshold and with which the non-linear uplink transmission product of the second terminal interferes, in the downlink frequency band to transmit the downlink data to the second terminal, wherein the seventh interference threshold is less than the second interference threshold.

### Claim 7

A resource scheduling method, comprising:
allocating a downlink resource block of a first communications system to a third terminal accessing the first communications system; and
if the third terminal further needs to transmit uplink data, preferentially allocating an uplink resource block, away from the downlink resource block as far as possible in frequency, in an uplink frequency band of the first communications system for the third terminal to transmit the uplink data.

### Claim 8 (depends on 7)

The method according to claim 7, wherein the preferentially allocating an uplink resource block, away from the downlink resource block as far as possible in frequency, in an uplink frequency band of the first communications system for the third terminal to transmit the uplink data comprises:
successively determining, starting from an available uplink resource block whose frequency value has the largest frequency interval with a frequency corresponding to the downlink resource block, whether the uplink resource block meets a first signal-to-noise ratio decision condition; selecting one or more uplink resource blocks that first meet the first signal-to-noise ratio decision condition, and allocating the selected one or more uplink resource blocks for the third terminal to transmit the uplink data.

### Claim 9 (depends on 7)

The method according to claim 7, wherein the preferentially allocating an uplink resource block, away from the downlink resource block as far as possible in frequency, in an uplink frequency band of the first communications system for the third terminal to transmit the uplink data comprises:
selecting one or more uplink resource blocks that meet a first signal-to-noise ratio decision condition from available uplink resource blocks whose frequency values each have a frequency interval greater than a preset first frequency interval threshold with the frequency corresponding to the downlink resource block, and allocating the selected one or more uplink resource blocks for the third terminal to transmit the uplink data, wherein the first signal-to-noise ratio decision condition is that a signal-to-noise ratio of an uplink resource block is greater than a preset first signal-to-noise ratio threshold.

### Claim 10

A resource scheduling method comprising:
allocating an uplink resource block of a first communications system to a fourth terminal accessing the first communications system; and
if downlink data further needs to be transmitted to the fourth terminal, preferentially allocating a downlink resource block, away from the uplink resource block as far as possible in frequency, in a downlink frequency band of the first communications system to transmit the downlink data to the fourth terminal.

### Claim 11 (depends on 10)

The method according to claim 10, wherein the preferentially allocating a downlink resource block, away from the uplink resource block as far as possible in frequency, in a downlink frequency band of the first communications system to transmit the downlink data to the fourth terminal comprises:
successively determining, starting from an available downlink resource block whose frequency value has the largest frequency interval with a frequency corresponding to the uplink resource block, whether the downlink resource block meets a second signal-to-noise ratio decision condition; selecting one or more downlink resource blocks that first meet the second signal-to-noise ratio decision condition, and allocating the one or more selected downlink resource blocks to transmit the downlink data to the fourth terminal.

### Claim 12 (depends on 10)

The method according to claim 10, wherein the preferentially allocating a downlink resource block, away from the uplink resource block as far as possible in frequency, in a downlink frequency band of the first communications system to transmit the downlink data to the fourth terminal comprises:
selecting one or more downlink resource blocks that meet the second signal-to-noise ratio decision condition from available downlink resource blocks whose frequency values each have a frequency interval greater than a preset second frequency interval threshold with the frequency corresponding to the uplink resource block, and allocating the one or more selected downlink resource blocks to transmit the downlink data to the fourth terminal, wherein the second signal-to-noise ratio decision condition is that a signal-to-noise ratio of a downlink resource block is greater than a preset second signal-to-noise ratio threshold.

### Claim 13

A radio access device comprising:
a first measuring module configured to measure an interference parameter value corresponding to each uplink resource block of a first communications system, wherein the interference parameter value is used to represent a degree of interference on a receive end of a second communications system when a terminal of the first communications system transmits data on a corresponding uplink resource block;
a second measuring module configured to measure a channel condition parameter value of an uplink channel of the first terminal when a first terminal accessing the first communications system needs to transmit uplink data, wherein the channel condition parameter value is used to represent a current channel condition of the uplink channel of the first terminal; and
a first resource scheduling module configured to preferentially allocate an uplink resource block meeting a first scheduling condition for the first terminal to transmit the uplink data when the second measuring module measures that the channel condition parameter value of the uplink channel of the first terminal is greater than a first channel condition threshold, and preferentially allocate an uplink resource block meeting a second scheduling condition for the first terminal to transmit the uplink data when a current channel condition parameter value of the uplink channel of the first terminal is less than the first channel condition threshold, wherein the uplink resource block meeting the first scheduling condition is an uplink resource block, whose interference parameter value measured by the first measuring module is greater than a first interference threshold, of the first communications system, and the uplink resource block meeting the second scheduling condition is an uplink resource block, whose interference parameter value measured by the first measuring module is less than the first interference threshold, of the first communications system.

### Claim 14 (depends on 13)

The radio access device according to claim 13, wherein:
the first measuring module is specifically configured to measure an additional maximum power reduction A_MPR value corresponding to each uplink resource block of the first communications system, wherein the uplink resource block meeting the first scheduling condition is an uplink resource block, whose maximum power reduction A_MPR value is greater than a first A_MPR threshold, of the first communications system; and the uplink resource block meeting the second scheduling condition is an uplink resource block, whose maximum power reduction A_MPR value is less than the first A_MPR threshold, of the first communications system; or
the first measuring module is specifically configured to measure an interference parameter value corresponding to each uplink resource block of the first communications system, wherein the interference parameter value is used to represent a degree of interference, caused by a non-linear uplink transmission product generated when the terminal of the first communications system transmits data on the corresponding uplink resource block, on the receive end of the second communications system.

### Claim 15

A radio access device comprising:
a third measuring module configured to measure an interference parameter value of interference, caused by a non-linear uplink transmission product of a second terminal accessing a first communications system, on a downlink frequency band of the first communications system; and
a second resource scheduling module configured to, if downlink data needs to be transmitted to the second terminal, preferentially allocate a corresponding downlink resource block, whose interference parameter value measured by the third measuring module is less than a second interference threshold and with which the non-linear uplink transmission product of the second terminal interferes, in the downlink frequency band to transmit the downlink data to the second terminal.

### Claim 16 (depends on 15)

The radio access device according to claim 15, wherein the second resource scheduling module is specifically configured to: if downlink data needs to be transmitted to the second terminal, preferentially allocate a corresponding downlink resource block, whose interference parameter value measured by the third measuring module is less than the second interference threshold and greater than a seventh interference threshold and with which the non-linear uplink transmission product of the second terminal interferes, in the downlink frequency band to transmit the downlink data to the second terminal, wherein the seventh interference threshold is less than the second interference threshold.

### Claim 17

A radio access device comprising:
a third resource scheduling module configured to allocate a downlink resource block of a first communications system to a third terminal accessing the first communications system; and
a fourth resource scheduling module configured to: when the third terminal further needs to transmit uplink data, preferentially allocate an uplink resource block, away from the downlink resource block allocated by the third resource scheduling module as far as possible in frequency, in an uplink frequency band of the first communications system for the third terminal to transmit the uplink data.

### Claim 18 (depends on 17)

The radio access device according to claim 17, wherein:
the fourth resource scheduling module is specifically configured to: when the third terminal further needs to transmit uplink data, successively determine, starting from an available uplink resource block whose frequency value has the largest frequency interval with a frequency corresponding to the downlink resource block allocated by the third resource scheduling module, whether the uplink resource block meets a first signal-to-noise ratio decision condition; select one or more uplink resource blocks that first meet the first signal-to-noise ratio decision condition, and allocate the selected one or more uplink resource blocks for the third terminal to transmit the uplink data; or select one or more uplink resource blocks that meet the first signal-to-noise ratio decision condition from available uplink resource blocks whose frequency values each have a frequency interval greater than a preset first frequency interval threshold with the frequency corresponding to the downlink resource block allocated by the third resource scheduling module, and allocate the selected one or more uplink resource blocks for the third terminal to transmit the uplink data, wherein the first signal-to-noise ratio decision condition is that a signal-to-noise ratio of an uplink resource block is greater than a preset first signal-to-noise ratio threshold.

### Claim 19

A radio access device, comprising:
a fifth resource scheduling module, configured to allocate an uplink resource block of a first communications system to a fourth terminal accessing the first communications system; and
a sixth resource scheduling module, configured to: when downlink data further needs to be transmitted to the fourth terminal, preferentially allocate a downlink resource block, away from the uplink resource block allocated by the fifth resource scheduling module as far as possible in frequency, in a downlink frequency band of the first communications system to transmit the downlink data to the fourth terminal.

### Claim 20 (depends on 19)

The radio access device according to claim 19, wherein:
the sixth resource scheduling module is specifically configured to: when downlink data further needs to be transmitted to the fourth terminal, successively determine, starting from an available downlink resource block whose frequency value has the largest frequency interval with a frequency corresponding to the uplink resource block allocated by the fifth resource scheduling module, whether the downlink resource block meets a second signal-to-noise ratio decision condition; select one or more downlink resource blocks that first meet the second signal-to-noise ratio decision condition, and allocate the one or more selected downlink resource blocks to transmit the downlink data to the fourth terminal; or select one or more downlink resource blocks that meet the second signal-to-noise ratio decision condition from available downlink resource blocks whose frequency values each have a frequency interval greater than a preset second frequency interval threshold with the frequency corresponding to the uplink resource block allocated by the fifth resource scheduling module, and allocate the one or more selected downlink resource blocks to transmit the downlink data to the fourth terminal, wherein the second signal-to-noise ratio decision condition is that a signal-to-noise ratio of a downlink resource block is greater than a preset second signal-to-noise ratio threshold.
