# US 9,438,404 B2 · Group resource allocation systems and techniques

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- Number: US 9,438,404 B2
- Document ID: US9438404B2
- Status: Granted
- Kind: B2
- Application number: 12/655,159
- Filed: 2009-12-23
- Published: 2011-06-23
- Granted: 2016-09-06
- Earliest claimed: 2009-03-03
- Assignees: Intel Corporation
- Applicants: Shweta Shrivastava; Rath Vannithamby; Vijay Sarathi Kesavan; Hongmei Sun; Wey-Yi W. Guy
- Inventors: Shweta Shrivastava; Rath Vannithamby; Vijay Sarathi Kesavan; Hongmei Sun; Wey-Yi W. Guy
- Web page: https://patentgrep.com/patent/US9438404B2

## CPC

- H04L 5/0057: {Physical resource allocation for CQI}
- H04L 1/0003: {by switching between different modulation schemes}
- H04L 1/0007: {by modifying the frame length}
- H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)}
- H04L 1/0026: {Transmission of channel quality indication}
- H04L 1/0027: {Scheduling of signalling, e.g. occurrence thereof}
- H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling}
- H04L 5/0082: {at predetermined intervals}
- H04L 5/0096: {Indication of changes in allocation}
- H04W 72/30: Resource management for broadcast services
- H04L 1/06: using space diversity
- H04L 5/0023: {Time-frequency-space}
- H04L 5/0037: {Inter-user or inter-terminal allocation}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04W 4/08: User group management
- H04W 28/06: Optimizing {the usage of the radio link}, e.g. header compression, information sizing {, discarding information (system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365)}
- H04W 28/18: Negotiating wireless communication parameters
- H04W 72/00: Local resource management
- H04W 72/04: Wireless resource allocation
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- 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 systems and methods for group resource allocation are generally described herein. Other embodiments may be described and claimed.

## Claims

### Claim 1

A method for group resource allocation (GRA), comprising:
determining, by circuitry, available modulation and coding schemes (MCS) and packet sizes;
computing a resource size matrix;
choosing effective combinations of MCS and packet sizes from the resource size matrix;
defining a first parameter set using the effective combinations of MCS and packet sizes;
forming a first group of users that use the first parameter set, the first group of users formed based at least in part on parameters specific to the first group of users;
forming a second group of users that use the first parameter set;
generating a first subframe group in a first frame having a first group identification (ID) number for the first group, wherein the first subframe group is assigned the first parameter set;
generating a second subframe group in the first frame having a second group ID number for the second group, wherein the second subframe group is assigned the first parameter set;
determining a reporting frequency for hierarchical reporting of a first channel quality indicator (CQI) value, wherein the reporting frequency is based at least in part on a periodicity of forming groups of users;
receiving first CQI information over a first node of a hierarchical tree, the first CQI information to comprise the first CQI value and a node value of the first node;
determining a set of subbands of a second frame; and
receiving second CQI information over a best-m subbands of the set of subbands via best-m reporting that is periodically triggered, the second CQI information to comprise a second CQI value, a reporting frequency of the best-m reporting to be less than the reporting frequency of the hierarchal reporting.

### Claim 2 (depends on 1)

The method of claim 1, wherein a minimal number of bits are used to represent the parameter set.

### Claim 3 (depends on 1)

The method of claim 1, wherein the best-m subbands are determined by a base station.

### Claim 4

A method of forming a frame using group resource allocation (GRA) to provide resource allocations to multiple users per group, comprising:
forming, by circuitry, a first group of users that use a first parameter set, the first group of users formed based at least in part on parameters specific to the first group of users, the first parameter set to include a multiple input multiple output (MIMO) mode parameter;
forming a second group of users that use the first parameter set;
generating a first group in the frame having a first group identification (ID) number for the first group, wherein the first group is assigned the first parameter set;
generating a second group in the frame having a second group ID number for the second group, wherein the second group is assigned the first parameter set;
receiving channel quality indicator (CQI) feedback for the frame via hierarchal reporting, wherein the reporting frequency is based at least in part on a periodicity of forming groups of users; and
receiving CQI feedback for a second frame via best-m reporting that is periodically triggered, a reporting frequency of the best-m reporting to be less than a reporting frequency of the hierarchal reporting.

### Claim 5 (depends on 4)

The method of claim 4, further including signaling the first parameter set to the first group of users and the second group of users.

### Claim 6 (depends on 5)

The method of claim 5, wherein the first parameter set comprises a parameter set ID to indicate at least one of a modulation and coding scheme (MCS), a resource size, and a burst size.

### Claim 7 (depends on 5)

The method of claim 5, wherein the first parameter set is signaled to the first group of users and the second group of users using a unicast, a multicast, or a broadcast message.

### Claim 8

A method for providing channel quality indicator (CQI) feedback for a station (STA), comprising:
forming a first group of users that use the first parameter set, the first group of users formed based at least in part on parameters specific to the first group of users;
forming a second group of users that use the first parameter set;
establishing a reporting frequency for hierarchal CQI feedback reporting, wherein the reporting frequency is based at least in part on a periodicity of forming groups of users;
determining a first node in a hierarchical tree to report first CQI feedback via the hierarchical CQI feedback reporting;
determining a subband that correlates with the first node;
associating with the first group of users in the subband;
reporting the first CQI feedback in a first frame, the first CQI feedback to comprise a CQI value and a node value of the first node; and
reporting second CQI feedback in a second frame using best-m CQI feedback reporting that is periodically triggered, a reporting frequency of the best-m CQI feedback reporting to be less than the reporting frequency of the hierarchical CQI feedback reporting.

### Claim 9 (depends on 8)

The method of claim 8, wherein the determining the first node in the hierarchical tree is based upon at least one of determining which subbands the STA was last allocated and a current modulation and coding scheme (MCS) for the STA.

### Claim 10 (depends on 9)

The method of claim 9, further including determining a second subband that correlates with the first node.

### Claim 11

An wireless apparatus, comprising:
signal processing circuitry configured to:
form a first group of users that use a first parameter set, the first group of users formed based at least in part on parameters specific to the first group of users, the first parameter set to include a multiple input multiple output (MIMO) mode parameter;
form a second group of users that use the first parameter set;
generate a first group in a frame having a first group identification (ID) number for the first group wherein the first group is assigned the first parameter set; and
generate a second group in the frame having a second group ID number for the second group wherein the second group is assigned the first parameter set; and
physical (PHY) layer circuitry to:
signal the first parameter set to the first group of users and the second group of users;
receive channel quality indicator (CQI) feedback for the frame via hierarchical reporting, wherein the reporting frequency is based at least in part on a periodicity of forming groups of users; and
receive CQI feedback for a second frame via best-m reporting that is periodically triggered, a reporting frequency of the best-m reporting to be less than a reporting frequency of the hierarchal reporting.

### Claim 12 (depends on 11)

The wireless apparatus of claim 11, wherein the PHY layer is configured to communicate using orthogonal frequency division multiple access (OFDMA) signals.

### Claim 13 (depends on 11)

The wireless apparatus of claim 11, wherein the PHY layer is configured to communicate using a 802.16m (mobile WiMAX) standard.