diff --git a/.vscode/settings.json b/.vscode/settings.json
index 02e8314..662cb84 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -4,5 +4,5 @@
     "editor.formatOnSave": true,
     "modulename": "${workspaceFolderBasename}",
     "distname": "${workspaceFolderBasename}",
-    "moduleversion": "1.1.1"
+    "moduleversion": "1.1.2"
 }
\ No newline at end of file
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index a337fe5..83b787f 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,5 +1,12 @@
 # pyrtcm Release Notes
 
+### RELEASE 1.1.2
+
+CHANGES:
+
+1. Sphinx documentation and docstrings enhanced to include global constants and decodes.
+1. `socket_stream.SocketStream` class renamed to `socket_wrapper.SocketWrapper` class for clarity.
+
 ### RELEASE 1.1.1
 
 ENHANCEMENTS:
diff --git a/docs/pyrtcm.rst b/docs/pyrtcm.rst
index e59969f..7a2e6a3 100644
--- a/docs/pyrtcm.rst
+++ b/docs/pyrtcm.rst
@@ -76,10 +76,10 @@ pyrtcm.rtcmtypes\_get\_msm module
    :undoc-members:
    :show-inheritance:
 
-pyrtcm.socket\_stream module
-----------------------------
+pyrtcm.socket\_wrapper module
+-----------------------------
 
-.. automodule:: pyrtcm.socket_stream
+.. automodule:: pyrtcm.socket_wrapper
    :members:
    :undoc-members:
    :show-inheritance:
diff --git a/pyproject.toml b/pyproject.toml
index 041bc27..b4bd250 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ name = "pyrtcm"
 authors = [{ name = "semuadmin", email = "semuadmin@semuconsulting.com" }]
 maintainers = [{ name = "semuadmin", email = "semuadmin@semuconsulting.com" }]
 description = "RTCM3 protocol parser"
-version = "1.1.1"
+version = "1.1.2"
 license = { file = "LICENSE" }
 readme = "README.md"
 requires-python = ">=3.8"
diff --git a/src/pyrtcm/__init__.py b/src/pyrtcm/__init__.py
index 1abe753..1bfac59 100644
--- a/src/pyrtcm/__init__.py
+++ b/src/pyrtcm/__init__.py
@@ -21,6 +21,6 @@
 from pyrtcm.rtcmtypes_get import *
 from pyrtcm.rtcmtypes_get_igs import *
 from pyrtcm.rtcmtypes_get_msm import *
-from pyrtcm.socket_stream import SocketStream
+from pyrtcm.socket_wrapper import SocketWrapper
 
 version = __version__  # pylint: disable=invalid-name
diff --git a/src/pyrtcm/_version.py b/src/pyrtcm/_version.py
index e1547a9..536026e 100644
--- a/src/pyrtcm/_version.py
+++ b/src/pyrtcm/_version.py
@@ -8,4 +8,4 @@
 :license: BSD 3-Clause
 """
 
-__version__ = "1.1.1"
+__version__ = "1.1.2"
diff --git a/src/pyrtcm/rtcmreader.py b/src/pyrtcm/rtcmreader.py
index aad02e7..1986557 100644
--- a/src/pyrtcm/rtcmreader.py
+++ b/src/pyrtcm/rtcmreader.py
@@ -36,7 +36,7 @@
 from pyrtcm.rtcmhelpers import calc_crc24q
 from pyrtcm.rtcmmessage import RTCMMessage
 from pyrtcm.rtcmtypes_core import ERR_LOG, ERR_RAISE, NMEA_HDR, UBX_HDR, VALCKSUM
-from pyrtcm.socket_stream import SocketStream
+from pyrtcm.socket_wrapper import SocketWrapper
 
 
 class RTCMReader:
@@ -66,7 +66,7 @@ def __init__(
         """
 
         if isinstance(datastream, socket):
-            self._stream = SocketStream(datastream, bufsize=bufsize)
+            self._stream = SocketWrapper(datastream, bufsize=bufsize)
         else:
             self._stream = datastream
         self._quitonerror = quitonerror
diff --git a/src/pyrtcm/rtcmtypes_core.py b/src/pyrtcm/rtcmtypes_core.py
index 29a2bd4..9ac355e 100644
--- a/src/pyrtcm/rtcmtypes_core.py
+++ b/src/pyrtcm/rtcmtypes_core.py
@@ -34,18 +34,34 @@
     b"$W",
 ]
 UBX_HDR = b"\xb5\x62"
+"""UBX message header"""
 RTCM_HDR = b"\xd3"
-NMEA_PROTOCOL = 1
-UBX_PROTOCOL = 2
-RTCM3_PROTOCOL = 4
+"""RTCM3 message header"""
 GET = 0
+"""GET (receive, response) message types"""
 SET = 1
+"""SET (command) message types"""
 POLL = 2
+"""POLL (query) message types"""
+SETPOLL = 3
+"""SETPOLL (SET or POLL) message types"""
 VALNONE = 0
+"""Do not validate checksum"""
 VALCKSUM = 1
+"""Validate checksum"""
+NMEA_PROTOCOL = 1
+"""NMEA Protocol"""
+UBX_PROTOCOL = 2
+"""UBX Protocol"""
+RTCM3_PROTOCOL = 4
+"""RTCM3 Protocol"""
 ERR_RAISE = 2
+"""Raise error and quit"""
 ERR_LOG = 1
+"""Log errors"""
 ERR_IGNORE = 0
+"""Ignore errors"""
+
 NA = "N/A"
 
 NSAT = "NSat"
@@ -892,9 +908,11 @@
     "112": ("BEIDOU", "DF427"),
     "113": ("NAVIC", "DF546"),
 }
+"""Map of MSM message identity prefix to GNSS name & epoch attribute name"""
 
 # map of 4076_201 coefficients
 COEFFS = {
     0: ("IDF039", "Cosine Coefficients"),
     1: ("IDF040", "Sine Coefficients"),
 }
+"""Map of 4076_01 message coefficient data attributes"""
diff --git a/src/pyrtcm/socket_stream.py b/src/pyrtcm/socket_wrapper.py
similarity index 98%
rename from src/pyrtcm/socket_stream.py
rename to src/pyrtcm/socket_wrapper.py
index 8edcc64..48d8252 100644
--- a/src/pyrtcm/socket_stream.py
+++ b/src/pyrtcm/socket_wrapper.py
@@ -1,5 +1,5 @@
 """
-socket_stream class.
+socket_wrapper class.
 
 A skeleton socket wrapper which provides basic stream-like
 read(bytes) and readline() methods.
@@ -19,7 +19,7 @@
 from socket import socket
 
 
-class SocketStream:
+class SocketWrapper:
     """
     socket stream class.
     """