# US 2018/0324680 A1 · Broadcast Information Block Assistance for a Wireless Device

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- Number: US 2018/0324680 A1
- Document ID: US20180324680A1
- Status: Published application
- Kind: A1
- Application number: 16/007,004
- Filed: 2018-06-13
- Published: 2018-11-08
- Earliest claimed: 2017-05-02
- Assignees: Apple Inc.
- Applicants: Apple Inc.
- Inventors: Jianxiong Shi; Madhusudan Chaudhary; Srinivasan Nimmala; Srirang A. Lovlekar; Venkateswara Rao Manepalli
- Web page: https://patentgrep.com/patent/US20180324680A1

## CPC

- H04W 48/10: using broadcasted information
- H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W 76/14: Direct-mode setup
- H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
- H04W 88/04: adapted for relaying to or from another terminal or user
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

This disclosure relates to broadcast information block assistance for a wireless device. The wireless device may obtain a first plurality of broadcast information blocks from a first base station. The wireless device may receive a second plurality of broadcast information blocks associated with the first base station from a source other than the first base station. The wireless device may determine if the second plurality of broadcast information blocks match the first plurality of broadcast information blocks based on version information specified in the first plurality of broadcast information blocks. When the broadcast information blocks match, the wireless device may use the first and second pluralities of broadcast information blocks to perform communication with the first base station without obtaining the second plurality of information blocks from the first base station.

## Claims

### Claim 1

A wireless device, comprising:
wireless communication circuitry; and
one or more processing elements coupled to the wireless communication circuitry, wherein the one or more processing elements are configured to:
obtain a first plurality of broadcast information blocks from a first base station;
receive a second plurality of broadcast information blocks associated with the first base station, wherein said receiving the second plurality of broadcast information blocks is from a source other than a base station, and wherein at least a subset of the second plurality of broadcast information blocks are different than the first plurality of broadcast information blocks;
determine if the second plurality of broadcast information blocks correspond to the first plurality of broadcast information blocks based on version information specified in the first plurality of broadcast information blocks;
when the second plurality of broadcast information blocks correspond to the first plurality of broadcast information blocks, use the first and second pluralities of broadcast information blocks to perform communication with the first base station without obtaining the second plurality of information blocks from the first base station.

### Claim 2 (depends on 1)

The wireless device of claim 1, wherein the one or more processing elements are further configured to:
when the second plurality of broadcast information blocks do not correspond to the first plurality of broadcast information blocks, obtaining the second plurality of broadcast information blocks from the first base station.

### Claim 3 (depends on 1)

The wireless device of claim 1, wherein the apparatus is comprised in an accessory device, wherein said receiving the second plurality of information blocks comprises receiving the second plurality of information blocks from a companion device, wherein the companion device is separate from the accessory device.

### Claim 4 (depends on 1)

The wireless device of claim 1, wherein the one or more processing elements are further configured to:
obtain the second plurality of broadcast information blocks from the first base station at a first time;
store the second plurality of broadcast information blocks in memory;
wherein said obtaining the first plurality of broadcast information blocks is performed at a second time, after the first time;
wherein receiving the second plurality of broadcast information blocks comprises retrieving the second plurality of broadcast information blocks from memory.

### Claim 5 (depends on 1)

The wireless device of claim 1, wherein the first plurality of broadcast information blocks comprises at least a master information block (MIB) and a system information block (SIB) transmitted by the first base station on a broadcast channel.

### Claim 6 (depends on 1)

The wireless device of claim 1, wherein the first base station is a long term evolution (LTE) base station, wherein the first plurality of broadcast information blocks comprises a master information block (MIB) and a system information block 1 (SIB 1).

### Claim 7 (depends on 6)

The wireless device of claim 6, wherein the second plurality of broadcast information blocks comprise SIB2, SIB3, SIB4, SIB5, and SIB6.

### Claim 8 (depends on 1)

The wireless device of claim 1, wherein the first plurality of broadcast information blocks comprises a master information block (MIB), a scheduling block (SB) 1, an SB2, and a system information block (SIB) 7.

### Claim 9 (depends on 8)

The wireless device of claim 8, wherein the second plurality of broadcast information blocks comprises SIB1, SIB3, SIB5, SIB11, and SIB19.

### Claim 10

An apparatus for implementation in a wireless device, comprising: one or more processing elements, wherein the one or more processing elements are configured to cause the wireless device to:
obtain a plurality of broadcast information blocks from a first base station using the wireless communication circuitry, wherein the plurality of broadcast information blocks comprise a first subset and a second subset, wherein the first and second subsets do not overlap;
perform communication with the first base station using the wireless communication circuitry;
provide the second subset of the plurality of broadcast information blocks to an accessory device, wherein the accessory device is configured to use the second subset of the plurality of broadcast information blocks to communicate with the first base station without the accessory device obtaining the second subset of the plurality of broadcast information blocks from the first base station.

### Claim 11 (depends on 10)

The apparatus of claim 10, wherein the wireless device provides the second subset of the plurality of broadcast information blocks without the first subset of the plurality of broadcast information blocks.

### Claim 12 (depends on 10)

The apparatus of claim 10, wherein the second subset of the plurality of broadcast information blocks comprise a plurality of system information blocks (SIBs).

### Claim 13 (depends on 10)

The apparatus of claim 10, wherein the first subset of the plurality of broadcast information blocks comprise at least a master information block (MIB) and a system information block (SIB).

### Claim 14 (depends on 10)

The apparatus of claim 10, wherein the first base station is a long term evolution (LTE) base station, wherein the first plurality of broadcast information blocks comprises a master information block (MIB) and a system information block 1 (SIB 1).

### Claim 15 (depends on 10)

The apparatus of claim 10, wherein the first plurality of broadcast information blocks comprises a master information block (MIB), a scheduling block (SB) 1, an SB2, and a system information block (SIB) 7.

### Claim 16

A method for operating a wireless device, comprising:
obtaining a plurality of broadcast information blocks from a first base station using the wireless communication circuitry, wherein the plurality of broadcast information blocks comprise a first subset and a second subset, wherein the first and second subsets do not overlap;
performing communication with the first base station using the wireless communication circuitry;
providing the second subset of the plurality of broadcast information blocks to an accessory device, wherein the accessory device is configured to use the second subset of the plurality of broadcast information blocks to communicate with the first base station without the accessory device obtaining the second subset of the plurality of broadcast information blocks from the first base station.

### Claim 17 (depends on 16)

The method of claim 16, wherein the wireless device provides the second subset of the plurality of broadcast information blocks without the first subset of the plurality of broadcast information blocks.

### Claim 18 (depends on 16)

The method of claim 16, wherein the second subset of the plurality of broadcast information blocks comprise a plurality of system information blocks (SIBs).

### Claim 19 (depends on 16)

The method of claim 16, wherein the first subset of the plurality of broadcast information blocks comprise at least a master information block (MIB) and a system information block (SIB).

### Claim 20 (depends on 16)

The method of claim 16, wherein the second plurality of broadcast information blocks comprise SIB2, SIB3, SIB4, SIB5, and SIB6.
