Method and system for enabling resource block bundling in LTE-A systems

Patent metadata

Field	Value
Publication number	US-9253784-B2
Application number	US-97071710-A
Country	US
Kind code	B2
Filing date	Dec 16, 2010
Priority date	Jan 11, 2010
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A base station is provided. The base station includes a transmit path circuitry to transmit an indication of whether a subscriber station is configured with precoding matrix indicator/rank indicator (PMI/RI) reporting. The transmit path circuitry sets a pre-coding granularity to multiple physical resource blocks in the frequency domain to perform a same pre-coding over a bundled resource block if the subscriber station is configured with PMI/RI reporting. The bundled resource block includes multiple consecutive physical resource blocks in the frequency domain. The base station also includes a receive path circuitry to receive feedback from the subscriber station.

First claim

What is claimed is:

1. A base station, comprising:
a transmit path circuitry configured to:
transmit, to a subscriber station, a control information, wherein a first content of the control information indicates to the subscriber station to select operation with precoding matrix indicator/rank indicator (PMI/RI) reporting during a next transmission by the subscriber station to the base station and a second content of the control information indicates to the subscriber station to select operation without PMI/RI reporting during the next transmission by the subscriber station to the base station, and
set a pre-coding granularity for the subscriber station based upon whether the control information indicates that the subscriber station is configured for operation with PMI/RI reporting during the next transmission by the subscriber station to the base station,
wherein the pre-coding granularity for the subscriber station is set to multiple physical resource blocks in a frequency domain to perform a substantially same pre-coding over a bundled resource block when the control information contains the first content indicating to the subscriber station to operate with PMI/RI reporting during the next transmission by the subscriber station to the base station,
wherein the pre-coding granularity for the subscriber station is not set to multiple physical resource blocks in a frequency domain when the control information contains the second content indicating to the subscriber station to operate without PMI/RI reporting during the next transmission by the subscriber station to the base station, and
wherein the bundled resource block comprises multiple consecutive physical resource blocks in the frequency domain; and

a receive path circuitry configured to receive feedback from the subscriber station,

wherein, when the control information contains the first content, the feedback includes PMI/RI reporting.

2. The base station in accordance with claim 1 , wherein the transmit path circuitry is further configured to set the pre-coding granularity to one physical resource block when the control information indicates to the subscriber station to operate without PMI/RI reporting.

3. A method of operating a base station, the method comprising:
transmitting, to a subscriber station, a control information, wherein a first content of the control information indicates to the subscriber station to select operation with precoding matrix indicator/rank indicator (PMI/RI) reporting during a next transmission by the subscriber station to the base station and a second content of the control information indicates to the subscriber station to select operation without PMI/RI reporting during the next transmission by the subscriber station to the base station;
setting a pre-coding granularity for the subscriber station based upon whether the control information indicates that the subscriber station is configured for operation with PMI/RI reporting during the next transmission by the subscriber station to the base station,
wherein the pre-coding granularity for the subscriber station is set to multiple physical resource blocks in a frequency domain to perform a substantially same pre-coding over a bundled resource block when the control information contains the first content indicating to the subscriber station to operate with PMI/RI reporting during the next transmission by the subscriber station to the base station,
wherein the pre-coding granularity for the subscriber station is not set to multiple physical resource blocks in a frequency domain when the control infoimation contains the second content indicating to the subscriber station to operate without PMI/RI reporting during the next transmission by the subscriber station to the base station, and
wherein the bundled resource block comprises multiple consecutive physical resource blocks in the frequency domain; and

receiving feedback from the subscriber station, wherein, when the control information contains the first content, the feedback includes PMI/RI reporting.

4. The method in accordance with claim 3 , further comprising:
setting the pre-coding granularity to one physical resource block when the control information indicates to the subscriber station to operate without PMI/RI reporting.

5. A subscriber station, comprising:
a receive path circuitry configured to:
receive, from a base station, a control information, wherein a first content of the control information indicates to the subscriber station to select operation with precoding matrix indicator/rank indicator (PMI/RI) reporting during a next transmission by the subscriber station to the base station and a second content of the control information indicates to the subscriber station to select operation without PMI/RI reporting during the next transmission by the subscriber station to the base station, and
perform a channel estimation based upon whether the control information indicates that the subscriber station is configured for operation with PMI/RI reporting during the next transmission by the subscriber station to the base station,
wherein the channel estimation is performed by the subscriber station over a bundled resource block when the control information contains the first content indicating to the subscriber station to operate with PMI/RI reporting during the next transmission by the subscriber station to the base station,
wherein the channel estimation is performed by the subscriber station over one or more resource blocks that are not bundled when the control information contains the second content indicating to the subscriber station to operate without PMI/RI reporting during the next transmission by the subscriber station to the base station, and
wherein the bundled resource block comprises multiple consecutive physical resource blocks in a frequency domain; and

a transmit path circuitry configured to transmit the channel estimation as feedback to the base station, wherein, when the control information contains the first content, the feedback includes PMI/RI reporting.

6. The subscriber station in accordance with claim 5 , wherein the receive path circuitry is further configured to perform channel estimation only on a per physical resource block basis when the control information indicates to the subscriber station to operate without PMI/RI reporting.

7. A method of operating a subscriber station, the method comprising:
receiving, from a base station, a control information, wherein a first content of the control information indicates to the subscriber station to select operation with precoding matrix indicator/rank indicator (PMI/RI) reporting during a next transmission by the subscriber station to the base station and a second content of the control information indicates to the subscriber station to select operation without PMI/RI reporting during the next transmission by the subscriber station to the base station;
performing a channel estimation based upon whether control information indicates that the subscriber station is configured for operation with PMI/RI reporting during the next transmission by the subscriber station to the base station,
wherein the channel estimation is performed by the subscriber station over a bundled resource block when the control information contains the first content indicating to the subscriber station to operate with PMI/RI reporting during the next transmission by the subscriber station to the base station,
wherein the channel estimation is performed by the subscriber station over one or more resource blocks that are not bundled when the control information contains the second content indicating to the subscriber station to operate without PMI/RI reporting during the next transmission by the subscriber station to the base sta

Assignees

• Liu Lingjia
• Nam Young-Han
• Zhang Jianzhong
• Samsung Electronics Co Ltd

Inventors

• Liu Lingjia
• Nam Young-Han
• Zhang Jianzhong

Classifications

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04L5/0044

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

• H04L25/03343

  Arrangements at the transmitter end · CPC title

• H04L5/0053 Primary

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

• H04L1/0026

  Transmission of channel quality indication · CPC title