# US 10,455,583 B1 · Resource allocation in wireless networks

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- Number: US 10,455,583 B1
- Document ID: US10455583B1
- Status: Granted
- Kind: B1
- Application number: 16/015,715
- Filed: 2018-06-22
- Granted: 2019-10-22
- Earliest claimed: 2016-10-19
- Assignees: Sprint Spectrum L.P.
- Applicants: Sprint Spectrum LP
- Inventors: Chunmei Liu; Krishna Sitaram; Hemanth Pawar; Pratik Kothari
- Web page: https://patentgrep.com/patent/US10455583B1

## CPC

- H04W 72/046: {the resource being in the space domain, e.g. beams}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04B 7/0452: Multi-user MIMO systems
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION

## Abstract

Allocating resources in a wireless network includes monitoring usage of each of a control channel and a data channel, determining that at least the usage of the data channel exceeds a capacity of the data channel, determining a usage of each of the control channel and the data channel operating in MU-MIMO mode, determining that the usage of the control channel in the MU-MIMO mode exceeds a first capacity of the control channel, determining a usage of each of the control channel and the data channel operating in both the MU-MIMO mode and an enhanced control mode, and adjusting a size of the portion of resources of the data channel allocated for control information upon determining that the second usage of one of the control channel or the data channel exceeds a second capacity of one of the control channel or the data channel.

## Claims

### Claim 1

A method for allocating resources in a wireless network operating in a multi-user (MU-MIMO) mode, the method comprising:
determining that a resource capacity of a data channel is exceeded, wherein a portion of the data channel is allocated for control information;
adjusting a size of the portion of the data channel allocated for control information; and
adjusting a number of wireless devices eligible for the MU-MIMO mode,
wherein adjusting the number of wireless devices eligible for the MU-MIMO mode further comprises increasing the number of wireless devices eligible for the MU-MIMO mode to increase the resource capacity of the data channel, and reducing the number of wireless devices eligible for the MU-MIMO mode to increase the resource capacity of the control channel.

### Claim 2 (depends on 1)

The method of claim 1, further comprising reducing the size of the portion of the data channel allocated for control information.

### Claim 3 (depends on 1)

The method of claim 1, further comprising determining that the resource capacity of a control channel is exceeded, and increasing the size of the portion of the data channel allocated for control information.

### Claim 4 (depends on 1)

The method of claim 1, wherein the resource capacity is measured in physical resource blocks (PRBs).

### Claim 5 (depends on 4)

The method of claim 4, wherein adjusting a size of the portion of the data channel allocated for control information comprises reducing or increasing a number of PRBs in the data channel allocated for control information.

### Claim 6

A system for allocating resources in a wireless network, the system comprising:
a processing node; and
a processor coupled to the processing node, the processor for enabling the processing node to perform operations comprising:
determining that a resource capacity of a data channel is exceeded, wherein a portion of the data channel is allocated for control information;
adjusting a size of the portion of the data channel allocated for control information;
adjusting a number of wireless devices eligible for the MU-MIMO mode,
wherein adjusting the number of wireless devices eligible for the MU-MIMO mode further comprises increasing the number of wireless devices eligible for the MU-MIMO mode to increase the resource capacity of the data channel;
determining that a resource capacity of a control channel is exceeded; and
increasing the size of the portion of the data channel allocated for control information.

### Claim 7 (depends on 6)

The system of claim 6, wherein the operations further comprise reducing the size of the portion of the data channel allocated for control information.

### Claim 8 (depends on 6)

The system of claim 6, wherein the operations further comprise reducing the number of wireless devices eligible for the MU-MIMO mode to increase the resource capacity of the control channel.

### Claim 9 (depends on 6)

The system of claim 6, wherein the resource capacity is measured in physical resource blocks (PRBs).

### Claim 10 (depends on 9)

The system of claim 9, wherein adjusting a size of the portion of the data channel allocated for control information comprises reducing or increasing a number of PRBs in the data channel allocated for control information.