diff --git a/telephony/java/android/telephony/CellIdentityCdma.java b/telephony/java/android/telephony/CellIdentityCdma.java
index 6e2a70d..31e01c0 100644
--- a/telephony/java/android/telephony/CellIdentityCdma.java
+++ b/telephony/java/android/telephony/CellIdentityCdma.java
@@ -162,13 +162,13 @@
 
     @Override
     public String toString() {
-        StringBuilder sb = new StringBuilder("CdmaCellIdentitiy:");
-        sb.append(super.toString());
+        StringBuilder sb = new StringBuilder("CellIdentitiyCdma:{");
         sb.append(" mNetworkId="); sb.append(mNetworkId);
         sb.append(" mSystemId="); sb.append(mSystemId);
         sb.append(" mBasestationId="); sb.append(mBasestationId);
         sb.append(" mLongitude="); sb.append(mLongitude);
         sb.append(" mLatitude="); sb.append(mLatitude);
+        sb.append("}");
 
         return sb.toString();
     }
diff --git a/telephony/java/android/telephony/CellIdentityGsm.java b/telephony/java/android/telephony/CellIdentityGsm.java
index bda96be..98113e7 100644
--- a/telephony/java/android/telephony/CellIdentityGsm.java
+++ b/telephony/java/android/telephony/CellIdentityGsm.java
@@ -147,13 +147,13 @@
 
     @Override
     public String toString() {
-        StringBuilder sb = new StringBuilder("GsmCellIdentitiy:");
-        sb.append(super.toString());
+        StringBuilder sb = new StringBuilder("CellIdentitiyGsm:{");
         sb.append(" mMcc=").append(mMcc);
-        sb.append(" mMnc=").append(mMcc);
+        sb.append(" mMnc=").append(mMnc);
         sb.append(" mLac=").append(mLac);
         sb.append(" mCid=").append(mCid);
         sb.append(" mPsc=").append(mPsc);
+        sb.append("}");
 
         return sb.toString();
     }
diff --git a/telephony/java/android/telephony/CellIdentityLte.java b/telephony/java/android/telephony/CellIdentityLte.java
index f72d583..86924bd 100644
--- a/telephony/java/android/telephony/CellIdentityLte.java
+++ b/telephony/java/android/telephony/CellIdentityLte.java
@@ -142,13 +142,13 @@
 
     @Override
     public String toString() {
-        StringBuilder sb = new StringBuilder("LteCellIdentitiy:");
-        sb.append(super.toString());
+        StringBuilder sb = new StringBuilder("CellIdentitiyLte:{");
         sb.append(" mMcc="); sb.append(mMcc);
         sb.append(" mMnc="); sb.append(mMnc);
         sb.append(" mCi="); sb.append(mCi);
         sb.append(" mPci="); sb.append(mPci);
         sb.append(" mTac="); sb.append(mTac);
+        sb.append("}");
 
         return sb.toString();
     }
diff --git a/telephony/java/android/telephony/CellInfo.java b/telephony/java/android/telephony/CellInfo.java
index f367f99..fe3c68b 100644
--- a/telephony/java/android/telephony/CellInfo.java
+++ b/telephony/java/android/telephony/CellInfo.java
@@ -149,7 +149,7 @@
         StringBuffer sb = new StringBuffer();
         String timeStampType;
 
-        sb.append(" mRegistered=").append(mRegistered ? "YES" : "NO");
+        sb.append("mRegistered=").append(mRegistered ? "YES" : "NO");
         timeStampType = timeStampTypeToString(mTimeStampType);
         sb.append(" mTimeStampType=").append(timeStampType);
         sb.append(" mTimeStamp=").append(mTimeStamp).append("ns");
diff --git a/telephony/java/android/telephony/CellInfoCdma.java b/telephony/java/android/telephony/CellInfoCdma.java
index a5d6e9c..6f2f1f6 100644
--- a/telephony/java/android/telephony/CellInfoCdma.java
+++ b/telephony/java/android/telephony/CellInfoCdma.java
@@ -87,10 +87,11 @@
     public String toString() {
         StringBuffer sb = new StringBuffer();
 
-        sb.append("CellInfoCdma:");
+        sb.append("CellInfoCdma:{");
         sb.append(super.toString());
-        sb.append(", ").append(mCellIdentityCdma);
-        sb.append(", ").append(mCellSignalStrengthCdma);
+        sb.append(" ").append(mCellIdentityCdma);
+        sb.append(" ").append(mCellSignalStrengthCdma);
+        sb.append("}");
 
         return sb.toString();
     }
diff --git a/telephony/java/android/telephony/CellInfoGsm.java b/telephony/java/android/telephony/CellInfoGsm.java
index bf0eca8..1bedddb 100644
--- a/telephony/java/android/telephony/CellInfoGsm.java
+++ b/telephony/java/android/telephony/CellInfoGsm.java
@@ -87,10 +87,11 @@
     public String toString() {
         StringBuffer sb = new StringBuffer();
 
-        sb.append("CellInfoGsm:");
+        sb.append("CellInfoGsm:{");
         sb.append(super.toString());
-        sb.append(", ").append(mCellIdentityGsm);
-        sb.append(", ").append(mCellSignalStrengthGsm);
+        sb.append(" ").append(mCellIdentityGsm);
+        sb.append(" ").append(mCellSignalStrengthGsm);
+        sb.append("}");
 
         return sb.toString();
     }
diff --git a/telephony/java/android/telephony/CellInfoLte.java b/telephony/java/android/telephony/CellInfoLte.java
index d7a58b6..287c9f0 100644
--- a/telephony/java/android/telephony/CellInfoLte.java
+++ b/telephony/java/android/telephony/CellInfoLte.java
@@ -91,10 +91,11 @@
     public String toString() {
         StringBuffer sb = new StringBuffer();
 
-        sb.append("CellInfoLte:");
+        sb.append("CellInfoLte:{");
         sb.append(super.toString());
-        sb.append(", ").append(mCellIdentityLte);
-        sb.append(", ").append(mCellSignalStrengthLte);
+        sb.append(" ").append(mCellIdentityLte);
+        sb.append(" ").append(mCellSignalStrengthLte);
+        sb.append("}");
 
         return sb.toString();
     }
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 4aee902..a30f87d 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -1357,4 +1357,24 @@
             return null;
         }
     }
+
+    /**
+     * Sets the minimum time in milli-seconds between {@link PhoneStateListener#onCellInfoChanged
+     * PhoneStateListener.onCellInfoChanged} will be invoked.
+     *
+     * The default, 0, means invoke onCellInfoChanged when any of the reported
+     * information changes. Setting the value to INT_MAX(0x7fffffff) means never issue
+     * A onCellInfoChanged.
+     *
+     * @param rateInMillis the rate
+     *
+     * @hide
+     */
+    public void setCellInfoListRate(int rateInMillis) {
+        try {
+            getITelephony().setCellInfoListRate(rateInMillis);
+        } catch (RemoteException ex) {
+        } catch (NullPointerException ex) {
+        }
+    }
 }
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 1449ab1..b78f589 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -294,5 +294,10 @@
      * Returns the all observed cell information of the device.
      */
     List<CellInfo> getAllCellInfo();
+
+    /**
+     * Sets minimum time in milli-seconds between onCellInfoChanged
+     */
+    void setCellInfoListRate(int rateInMillis);
 }
 
diff --git a/telephony/java/com/android/internal/telephony/RILConstants.java b/telephony/java/com/android/internal/telephony/RILConstants.java
index 077ad68..9650b99 100644
--- a/telephony/java/com/android/internal/telephony/RILConstants.java
+++ b/telephony/java/com/android/internal/telephony/RILConstants.java
@@ -260,6 +260,8 @@
     int RIL_REQUEST_ACKNOWLEDGE_INCOMING_GSM_SMS_WITH_PDU = 106;
     int RIL_REQUEST_STK_SEND_ENVELOPE_WITH_STATUS = 107;
     int RIL_REQUEST_VOICE_RADIO_TECH = 108;
+    int RIL_REQUEST_GET_CELL_INFO_LIST = 109;
+    int RIL_REQUEST_SET_UNSOL_CELL_INFO_LIST_RATE = 110;
     int RIL_UNSOL_RESPONSE_BASE = 1000;
     int RIL_UNSOL_RESPONSE_RADIO_STATE_CHANGED = 1000;
     int RIL_UNSOL_RESPONSE_CALL_STATE_CHANGED = 1001;
@@ -297,4 +299,5 @@
     int RIL_UNSOL_EXIT_EMERGENCY_CALLBACK_MODE = 1033;
     int RIL_UNSOL_RIL_CONNECTED = 1034;
     int RIL_UNSOL_VOICE_RADIO_TECH_CHANGED = 1035;
+    int RIL_UNSOL_CELL_INFO_LIST = 1036;
 }