2c1a177902
Adds getChannelNumber() to CellIdentity.
Creates a static utility class to calculate the duplex mode from an
EARFCN.
Bug: 73728783
Test: runtest frameworks-telephony
Change-Id: I5b5c4efa7e17594ce9397cf65e129147affe96bd
Merged-In: I5b5c4efa7e17594ce9397cf65e129147affe96bd
(cherry picked from commit a483ce3bfd)
313 lines
9.3 KiB
Java
313 lines
9.3 KiB
Java
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.telephony;
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import android.os.Parcel;
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import android.text.TextUtils;
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import java.util.Objects;
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/**
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* CellIdentity is to represent a unique LTE cell
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*/
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public final class CellIdentityLte extends CellIdentity {
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private static final String TAG = CellIdentityLte.class.getSimpleName();
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private static final boolean DBG = false;
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// 28-bit cell identity
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private final int mCi;
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// physical cell id 0..503
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private final int mPci;
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// 16-bit tracking area code
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private final int mTac;
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// 18-bit Absolute RF Channel Number
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private final int mEarfcn;
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// long alpha Operator Name String or Enhanced Operator Name String
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private final String mAlphaLong;
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// short alpha Operator Name String or Enhanced Operator Name String
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private final String mAlphaShort;
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// cell bandwidth, in kHz
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private final int mBandwidth;
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/**
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* @hide
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*/
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public CellIdentityLte() {
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super(TAG, TYPE_LTE, null, null);
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mCi = Integer.MAX_VALUE;
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mPci = Integer.MAX_VALUE;
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mTac = Integer.MAX_VALUE;
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mEarfcn = Integer.MAX_VALUE;
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mBandwidth = Integer.MAX_VALUE;
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mAlphaLong = null;
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mAlphaShort = null;
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}
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/**
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*
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* @param mcc 3-digit Mobile Country Code, 0..999
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* @param mnc 2 or 3-digit Mobile Network Code, 0..999
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* @param ci 28-bit Cell Identity
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* @param pci Physical Cell Id 0..503
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* @param tac 16-bit Tracking Area Code
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*
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* @hide
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*/
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public CellIdentityLte(int mcc, int mnc, int ci, int pci, int tac) {
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this(ci, pci, tac, Integer.MAX_VALUE, Integer.MAX_VALUE, String.valueOf(mcc),
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String.valueOf(mnc), null, null);
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}
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/**
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*
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* @param mcc 3-digit Mobile Country Code, 0..999
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* @param mnc 2 or 3-digit Mobile Network Code, 0..999
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* @param ci 28-bit Cell Identity
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* @param pci Physical Cell Id 0..503
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* @param tac 16-bit Tracking Area Code
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* @param earfcn 18-bit LTE Absolute RF Channel Number
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*
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* @hide
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*/
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public CellIdentityLte(int mcc, int mnc, int ci, int pci, int tac, int earfcn) {
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this(ci, pci, tac, earfcn, Integer.MAX_VALUE, String.valueOf(mcc), String.valueOf(mnc),
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null, null);
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}
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/**
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*
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* @param ci 28-bit Cell Identity
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* @param pci Physical Cell Id 0..503
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* @param tac 16-bit Tracking Area Code
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* @param earfcn 18-bit LTE Absolute RF Channel Number
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* @param bandwidth cell bandwidth in kHz
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* @param mccStr 3-digit Mobile Country Code in string format
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* @param mncStr 2 or 3-digit Mobile Network Code in string format
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* @param alphal long alpha Operator Name String or Enhanced Operator Name String
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* @param alphas short alpha Operator Name String or Enhanced Operator Name String
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*
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* @hide
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*/
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public CellIdentityLte(int ci, int pci, int tac, int earfcn, int bandwidth, String mccStr,
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String mncStr, String alphal, String alphas) {
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super(TAG, TYPE_LTE, mccStr, mncStr);
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mCi = ci;
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mPci = pci;
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mTac = tac;
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mEarfcn = earfcn;
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mBandwidth = bandwidth;
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mAlphaLong = alphal;
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mAlphaShort = alphas;
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}
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private CellIdentityLte(CellIdentityLte cid) {
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this(cid.mCi, cid.mPci, cid.mTac, cid.mEarfcn, cid.mBandwidth, cid.mMccStr,
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cid.mMncStr, cid.mAlphaLong, cid.mAlphaShort);
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}
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CellIdentityLte copy() {
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return new CellIdentityLte(this);
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}
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/**
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* @return 3-digit Mobile Country Code, 0..999, Integer.MAX_VALUE if unknown
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* @deprecated Use {@link #getMccString} instead.
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*/
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@Deprecated
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public int getMcc() {
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return (mMccStr != null) ? Integer.valueOf(mMccStr) : Integer.MAX_VALUE;
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}
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/**
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* @return 2 or 3-digit Mobile Network Code, 0..999, Integer.MAX_VALUE if unknown
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* @deprecated Use {@link #getMncString} instead.
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*/
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@Deprecated
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public int getMnc() {
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return (mMncStr != null) ? Integer.valueOf(mMncStr) : Integer.MAX_VALUE;
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}
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/**
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* @return 28-bit Cell Identity, Integer.MAX_VALUE if unknown
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*/
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public int getCi() {
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return mCi;
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}
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/**
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* @return Physical Cell Id 0..503, Integer.MAX_VALUE if unknown
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*/
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public int getPci() {
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return mPci;
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}
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/**
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* @return 16-bit Tracking Area Code, Integer.MAX_VALUE if unknown
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*/
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public int getTac() {
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return mTac;
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}
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/**
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* @return 18-bit Absolute RF Channel Number, Integer.MAX_VALUE if unknown
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*/
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public int getEarfcn() {
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return mEarfcn;
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}
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/**
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* @return Cell bandwidth in kHz, Integer.MAX_VALUE if unknown
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*/
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public int getBandwidth() {
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return mBandwidth;
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}
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/**
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* @return Mobile Country Code in string format, null if unknown
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*/
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public String getMccString() {
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return mMccStr;
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}
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/**
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* @return Mobile Network Code in string format, null if unknown
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*/
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public String getMncString() {
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return mMncStr;
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}
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/**
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* @return a 5 or 6 character string (MCC+MNC), null if any field is unknown
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*/
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public String getMobileNetworkOperator() {
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return (mMccStr == null || mMncStr == null) ? null : mMccStr + mMncStr;
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}
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/**
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* @return The long alpha tag associated with the current scan result (may be the operator
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* name string or extended operator name string). May be null if unknown.
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*/
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public CharSequence getOperatorAlphaLong() {
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return mAlphaLong;
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}
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/**
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* @return The short alpha tag associated with the current scan result (may be the operator
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* name string or extended operator name string). May be null if unknown.
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*/
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public CharSequence getOperatorAlphaShort() {
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return mAlphaShort;
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}
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/** @hide */
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@Override
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public int getChannelNumber() {
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return mEarfcn;
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}
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@Override
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public int hashCode() {
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return Objects.hash(mMccStr, mMncStr, mCi, mPci, mTac, mAlphaLong, mAlphaShort);
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}
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@Override
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public boolean equals(Object other) {
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if (this == other) {
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return true;
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}
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if (!(other instanceof CellIdentityLte)) {
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return false;
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}
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CellIdentityLte o = (CellIdentityLte) other;
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return mCi == o.mCi
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&& mPci == o.mPci
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&& mTac == o.mTac
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&& mEarfcn == o.mEarfcn
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&& mBandwidth == o.mBandwidth
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&& TextUtils.equals(mMccStr, o.mMccStr)
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&& TextUtils.equals(mMncStr, o.mMncStr)
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&& TextUtils.equals(mAlphaLong, o.mAlphaLong)
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&& TextUtils.equals(mAlphaShort, o.mAlphaShort);
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}
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@Override
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public String toString() {
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return new StringBuilder(TAG)
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.append(":{ mCi=").append(mCi)
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.append(" mPci=").append(mPci)
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.append(" mTac=").append(mTac)
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.append(" mEarfcn=").append(mEarfcn)
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.append(" mBandwidth=").append(mBandwidth)
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.append(" mMcc=").append(mMccStr)
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.append(" mMnc=").append(mMncStr)
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.append(" mAlphaLong=").append(mAlphaLong)
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.append(" mAlphaShort=").append(mAlphaShort)
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.append("}").toString();
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}
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/** Implement the Parcelable interface */
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@Override
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public void writeToParcel(Parcel dest, int flags) {
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if (DBG) log("writeToParcel(Parcel, int): " + toString());
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super.writeToParcel(dest, TYPE_LTE);
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dest.writeInt(mCi);
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dest.writeInt(mPci);
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dest.writeInt(mTac);
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dest.writeInt(mEarfcn);
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dest.writeInt(mBandwidth);
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dest.writeString(mAlphaLong);
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dest.writeString(mAlphaShort);
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}
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/** Construct from Parcel, type has already been processed */
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private CellIdentityLte(Parcel in) {
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super(TAG, TYPE_LTE, in);
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mCi = in.readInt();
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mPci = in.readInt();
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mTac = in.readInt();
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mEarfcn = in.readInt();
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mBandwidth = in.readInt();
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mAlphaLong = in.readString();
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mAlphaShort = in.readString();
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if (DBG) log(toString());
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}
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/** Implement the Parcelable interface */
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@SuppressWarnings("hiding")
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public static final Creator<CellIdentityLte> CREATOR =
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new Creator<CellIdentityLte>() {
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@Override
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public CellIdentityLte createFromParcel(Parcel in) {
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in.readInt(); // skip;
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return createFromParcelBody(in);
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}
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@Override
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public CellIdentityLte[] newArray(int size) {
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return new CellIdentityLte[size];
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}
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};
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/** @hide */
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protected static CellIdentityLte createFromParcelBody(Parcel in) {
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return new CellIdentityLte(in);
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}
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}
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