IMPROVED BLIND DECODING IN A MOBILE ENVIRONMENT

32
Table 1: Example Inter-column permutation pattern for sub-block interleave!"

According to the above pattern indicated by Table I, an interleaved version of the above matrix can appear as follows:
3V> yp(2) "■ yp(c-\)
-V/'(())-C
yp(\)+c yp(2)---c m" y'ric-D-i-c
_ypah---(R-\)yC yp{\)-'-(R-\y-c »<:wk- u-c . the permuted matrix can be read out column by to generate an output sequence of sub-block interleave v bits inter-leaved> sequence Vfc('v,can be denoted by l/(!A'\V/i,'Vl,V/,('V| V(/[v where ^'corresponds to
ypiOi. V,1'"1 corresponds to yp,oj+C\ .... and Ku = (R x C).
[0066] Bit collection block 408 can receive the output streams V/". V/:i, Vt!'Vl
from sub-block interleaves 402,404, 406 and aggregate the output streams into a single sequence wk at circular buffer 410. For some systems (e.g., E-UTRAN) the circular buffer can have length Ku- = 3* Ku . Additionally, the sequence lt^can be generated by the bit collection block 408 as follows:
wk= \//0) for A: = 0 Kn-«'*„.*= C for* = 0 K"']
HW„-fc = Vk'S,) forA = 0 Ku-[0067] A bit selection module 412 can rate-match the signal wk to an output
signal e\i that is mapped to resources of a wireless signal and transmitted by a transmitter. To minimize similarity between multiple mobile network slates, as described herein, a signal processor 414 can employ one or more modified rate-matching techniques that introduce distinct states into the output signal ek. Such states can be correlated with one or more network-related parameters or network states, When detected by a receiver, the rate-matching slates can be utilized to further identify a mobile network state of a mobile network transmitting the output signal ei. In one particular example, signal processor 414 can introduce one or more data offsets

correlated to one or more network-related parameters in rate matching signal w^ to output signal ek, as further described infra al Fig. 5.
[0068] Fig. 5 illustrates a block diagram of an example system 500 comprising
a rate-matching apparatus 502 that conveys transmit antenna state via modified rate-matching of broadcast data streams, Rate matching apparatus 502 can receive a coded broadcast stream w^ (e.g., generated as described supra with respect to Fig. 4) from a circular buffer 504. The coded broadcast stream is received al a signal processor 506.
A mapping module 508 can employ one or more data offsets Q0, Qi Q». where n is
a positive integer, and introduce those data offsets into the coded broadcast stream or an output stream *. For instance, the data offsets Q0, Qj, ..., Q„ can represent different bits (e.g., a first bit, second bit, ..., H-th bit) of the coded broadcast stream or different
resources of the output stream (e.g., a first resource, second resource /?-ih resource).
[0069] A sequence module 516 can map bits of the broadcast signal u^. to output
signal * utilizing the data offsets 510 introduced by mapping module 508. In such a manner, at least one offset state can be encoded into the output signal. Such mapping can be accomplished by various mechanisms. For instance, when the offsets 510 relate to different bits of the coded broadcast stream, mapping one of the bits to the first resource of the output stream can convey one of n offset states. When the offsets 510 relate to different resources of the coded broadcast stream, mapping a first bit of the coded stream to one of the resources of the output stream can also convey one of n offset states. In addition to the foregoing, a combination of offset bits of the coded broadcast stream and offset resources of the output stream can be employed (e.g., by mapping one of n bits of the coded broadcast stream to one of n resources of the output stream) to provide substantially n2 offset states. As described herein, these offset states can be correlated to network states, enabling identification of network states by
decoding a particular offset state of a received signal. Data offsets QQ, QI Qn 510
as well as network states, and correlations thereof, can be stored in memory 512. Further, a rate-matching type flag can indicate a type of rate-matching modification (e.g., coded stream offset, output stream offset, or a combination thereof) utilized by rate-matching apparatus 502.

[0070] In one aspect of the foregoing, sequence module 516 can implement the
data offsets 510 by mapping bits of the coded broadcast channel to the output signal according to the following formula:
where Kw ~ 3K-,-,, Ku ~ length of wk, 0 . Additionally, sequence module 516 can map output signal ('k to resources of a wireless signal generated by signal parser 514 {e.g., as described at Fig. 3, supra). The wireless signal can be transmitted by a base station, wireless access point, or the like, to provide such signal to a receiving device. By decoding the received signal and identifying a rate-matching slate encoded into the signal, the receiving device can determine a network state mapped to the identified rate-matching state. In blind decoding of transmit antenna configuration, for example, this technique can improve accurate determination of the transmit antenna configuration, enabling efficient utilizing of MIMO and other multi-antenna capabilities.
[0071] Fig. 6 depicts a block diagram 600 of a sample user terminal (UT) 602
configured to obtain a wireless signal and decode system configuration information conveyed by the signal. In particular, UT 602 can identify a modified rate-matching state utilized to encode broadcast data to broadcast resources of the signal. By identifying the modified rate-matching state, a state of the system (e.g.. number of transmitting antennas) can be determined.
[0072] In general UT 602 can be configured to wirelessly couple with one or
more remote transceivers 604 (e.g., access point, base station, peer node). UT 602 can receive wireless signals from such transceiver(s) 604 on a FL channel and respond with wireless signals on a RL channel, as known in the art. UT 602 includes at least one antenna 606 (e.g., a transmission receiver or group of such receivers comprising an input interface) that receives a signal (e.g., wireless message) and receiver(s) 608, which performs typical actions (e.g., filters, amplifies, down-converts, etc.) on the received signal. In general, antenna 606 and transmitter 628 (collectively referred to as a transceiver) can be configured to facilitate wireless data exchange with remote transceiver 604,
[0073] Antenna 606 and receiver(s) 608 can also be coupled with a demodulator
610 that can demodulate received symbols and provide them to a processing circuit 612 for evaluation. It should be appreciated that processing circuit 612 can control and/or

reference one or more components {606, 608, 610, 614, 616, 618, 620, 622, 624. 626. 628) of the UT 602. Further, processing circuit 612 can execute one or more modules, applications, engines, or the like (616, 620, 622, 624) that comprise information or controls pertinent to executing functions of the mobile terminal 602. For instance, such functions can include demodulating received wireless signals, identifying modified rate-matching state(s) of the signal, correlating the state(s) to system state information, and configuring other components of the UT 602 according to such system state information.
[0074] Mobile terminal 602 can additionally include memory 616 that is
operative!}' coupled to processing circuit 614. Memory 616 can store data to be transmitted, received, and the like, and instructions suitable to conduct wireless communication with remote transceiver(s) 604. Further, memory 616 can store the modules, applications, references, engines, etc. (614, 618. 620, 622) executed by processing circuit 614, above.
[0075] Additionally, UT602 can comprise a receiver module 616 that can
analyze broadcast data transmitted via a received wireless signal. The receiver module 616 can further determine one or more states of such data as defined by a rules map 618 stored in memory 614. The rules map 618 can include instructions that facilitate identifying rate-matching states of data mapped to resources of a wireless signal, as described herein. For instance, the rules map 618 can facilitate identification of a data offset introduced into a mapping of a broadcast data stream the wireless signal resources. In addition, the rules map 618 can include a correlation between distinct rate-matching states and network system states. Thus, as an example, one or more data offset slates can be correlated to a number of transmit antennas utilized io transmit the wireless signal. A date offset slate determined by receiver module 616 can be compared to rules map 618 by a correlation module 620, which can thereby ascertain the appropriate network state (e.g., a quad transmission antenna configuration). Once the appropriate network state is determined, a configuration module 624 can adjust, where beneficial, components of the UT 602 to correspond with the determined network state. Such an arrangement can result in more quickly determining existing network states and providing uniform and consistent communications between the UT 602 and transceiver 604. Thus, as a particular example, configuration module 624 can adjust antenna 606,

receiver 608 and/or demodulator 610 as suitable for a single, dual or quad transmit
antenna configuration determined by the correlation module 620.
[0076] According to some aspects of the disclosure, UT 602 can further
comprise a reference module 622. which obtains rules map 618 from a portion of a received wireless signal, or of an additional wireless signal. For instance, a network could update relationships of network state and rate-matching slate, to include additional network states or to provide a time-varying aspect for such rate-matching -network slate relationships. Additionally, the network could update a mechanism utilized to generate the rate-matching stales O./,'.. employing a data offset with respect to bits of a coded stream, with respect resources of the output stream, or both). Thus, for the foregoing reasons or for other reasons or combinations of such reasons, the network can transmit a new or updated rules map (618) to some or ail terminals served by the network (604). In some cases, a new/updated rules map (618) can be included with broadcast transmissions to all terminals. In other cases, such rules map (618) can be unicast to qualifying terminals or secure terminals.
[0077] Fig. 7 illustrates a block diagram of a system 700 comprising a sample
base station 702 that facilitates improved communication in a mobile network
environment. In at least one aspect of the subject disclosure, base station 702 can
convey mobile network states utilizing corresponding rate-matching slates of broadcast
data streams. In such a manner, the mobile network slates can be distinguished utilizing
existing broadcast channel resources of the wireless signal. Accordingly, in at least
some aspects of the disclosure, system 700 can facilitate improved blind decoding of
configuration stales of the base station's (702) transmit antenna(s) 708.
[0078] Base station 702 (?.#.. access point. ...} can comprise a receiver 710 that
receives signal(s) from one or more user terminals 704 through a plurality of receive antennas 706, and a transmitter 728 that transmits modulated signals provided by modulator 726 to UT(s) 704 through transmit antenna(s) 708. Receiver 710 can receive information from receive antennas 706 and can further comprise a signal recipient (not shown) that receives uplink data transmitted by UT(s) 704. Additionally, receiver 710 is operatively associated with a demodulator 712 that demodulates received information. Demodulated symbols are analyzed by a processor 714, which also provides symbols to a modulator 730 for transmission. Processor 714 is coupled to a memory 716 that stores information related to functions provided by base station 702. In one instance, stored

information can comprise protocols for obtaining and/or determining performance metrics of wireless communications with mobile devices 704. Particularly, the stored information can comprise rules for establishing distinguishable states for mapping broadcast data to resources of a wireless signal, correlating those slates with system stales, and transmitting such signal to remote devices (704).
[00791 Base station 702 further comprises a signal parser 718 that can segment a
wireless signal into a plurality of resources. A signal processor 718 can map data to be transmitted by the base station 702 to a subset of the resources. In addition, signal processor 718 can convey wireless network system information by employing mapping of the data to the subset of resources. For instance, various mapping or rate-matching stales can be implemented in rate-matching the data to such subset of resources, The rale-matching slates can further be correlated to stale of wireless network system. Accordingly, by mapping a particular state to the subset of resources, a particular network system state can also be conveyed with the signal. In at least one aspect of the disclosure, the rate-matching state can be a data offset introduced in mapping the data lo the subset of resources, as described herein.
[0080] As a particular example of the foregoing, signal processor 720 can
employ a mapping module 722 to introduce a data offset(s) into a transmitted signal. The mapping module 722 can write a first hit of a data stream to different bit positions (e.g.. resources) of an output stream for different slates of the network system. Alternatively, or in addition, the mapping module 722 can write different offset bits (e.g., second bit, third bit, etc.) of the data stream to the first bit position of (he output stream for different states of the network system. Modulator 726 can then modulate the bits into the wireless signal for transmission by transmitter 728 and transmit antenna(s) 708. As a further example, the signal processor 720 and/or mapping module 722 can employ three distinct data offsets Q0, Ql, and Q2, that correspond lo a single transmit antenna (708) configuration, a dual transmit antenna (708) configuration and a quad transmit antenna (708) configuration, respectively. Additionally, the signal processor 718 can employ a sequence module to generate a rate-matching output sequence ek
from a data stream sequence wk at least in part based on the following formula: ek — Wj.^\(t,)tmt\fiw

where Kw~ 3ATri, Ku - length of wk, 0 .
[0081] By configuring an output stream according to different states (.#.. by
employing different data offsets), additional information can be conveyed to UT(s) 704 utilizing existing signal resources. Additionally, one or more states of a mobile network can be likewise conveyed by correlating such network states with the states of the output stream. Thus, as one example, system 700 can provide improved blind decoding of transmit antenna configuration by UT(s) 704, facilitating efficient MIMO communication, for instance.
[00821 The aforementioned systems have been described with respect to
interaction between several components, modules and/or communication interfaces. It should be appreciated that such systems and components/modules/interface’s can include those components or sub-components specified therein, some of the specified components or sub-components, and/or additional components. For example, a system could include rate matching apparatus 302, user terminal 602, and base station 702, or a different combination of these and other components, Sub-modules could also be implemented as modules communicatively coupled to other modules rather than included within parent modules. Additionally, it should be noted that one or more modules could be combined into a single module providing aggregate functionality. For instance, mapping module 508 can include sequence module 416. or vice versa, to facilitate introducing data offsets into a coded broadcast stream and generating an output stream by way of a single module, The modules can also interact with one or more other modules not specifically described he?- in hut known by those of skill in the art.
[0083] Furthermore, as will be appreciated, various portions of the disclosed
systems above and methods below may include or consist of artificial intelligence or knowledge or rule based components, sub-components, processes, means, methodologies, or mechanisms (e.g., support vector machines, neural networks, expert systems, Bayesian belief networks, fuzzy logic, data fusion engines, classifiers...). Such components, inter alia, and in addition to that already described herein, can automate certain mechanisms or processes performed thereby to make portions of the systems and methods more adaptive as well as efficient and intelligent.

[0084] In view of the exemplary systems described supra, methodologies that
may be implemented in accordance with the disclosed subject matter will be better appreciated with reference to the flow charts of FIGs. 8-11. While for purposes of simplicity of explanation, the methodologies are shown and described as a series of blocks, it is to be understood and appreciated that the claimed subject matter is not limited by (he order of the blocks, as some blocks may occur in different orders and/or concurrently with other blocks from what is depicted and described herein. Moreover, not all illustrated blocks may be required to implement the methodologies described hereinafter. Additionally, it should be further appreciated that the methodologies disclosed hereinafter and throughout this specification are capable of being stored on an article of manufacture to facilitate transporting and transferring such methodologies to computers. The term article of manufacture, as used, is intended to encompass a computer program accessible from any computer-readable device, device in conjunction with a carrier, or storage medium.
[0085] Fig. 8 depicts a flowchart of an example methodology 800 for conveying
network state by modified rate-matching of broadcast data streams. At 802. method 800 can segment a wireless signal into multiple resources. The resources can be time-based resources, frequency-based resources, symbol-based resources, code-based resources or the like, or a combination thereof. The resources can be utilized to transmit analog and/or digital information mapped to such resources (e.g.. upon transmission by a transmission antenna).
[0086] At 804, method 800 can convey wireless network system information by
employing at least one distinct data state in rate-matching a data stream to resources of the wireless signal. The distinct data state(s) can comprise a data offset implemented in conjunction with resources of the wireless signal reserved for broadcast data, synchronization data, acquisition or synchronization data, traffic data or a combination thereof. In at least one aspect of the disclosure, the data state(s) can comprise mapping an offset bit(s) (e.g., 0 + Q bit, where Q is a positive integer) of the data stream to a first resource of the wireless signal, or vice versa. In some aspects, a combination of offset data stream bits and offset signal resources can be employed to introduce additional states, By correlating state of the network system to one or more distinct data states, the network information can be transmitted employing existing allocation of resources.

Thus, a substantial benefit can be provide in, for instance, blind decoding transmit
antenna configuration at a remote terminal, as described herein,
|0087] Fig. 9 illustrates a flowchart of an example methodology 900 for
broadcasting transmit antenna configuration via modified rate-matching of broadcast data streams, At 902. method 900 can generate one or more data offsets for rate-matching broadcast data to resources of a wireless signal. The data offsets can be in relation to bits of a broadcast data stream, in relation to resources of the wireless signal, or both. Each data offset can provide a distinct data offset stale in the wireless signal. At 904, method 900 can correlate a distinct transmit antenna configuration state to a data offset slate. At 906, bits of the data stream can be mapped to bit positions of an output stream. At 908, a determination is made as lo whether an input offset or output offset is utilized. The determination can be made with reference to a stored rate-matching parameter, for instance. If an input offset, method 900 can proceed to 9 i 0; otherwise, method 900 can proceed to 912.
[0088] At 910, method 900 maps offset bits of the data stream lo a first bit
position of the output stream. Thus, for instance, a 0 + Qth bit, where Q is a positive integer, is mapped to the first bit position. Accordingly, each value of Q provides a distinct state of the output stream. At 912, method 900 instead maps the first bit of the data stream to offset bit positions of the output stream, Thus, for instance, the first bit can be mapped to a 0 + ith bit position, where,/ is a positive integer. Thus, each value of,/ also provides a distinct state of the output stream,
[0089] At 914, method 900 can modulate the output stream into a wireless
signal. The signal can be transmitted to remote terminal devices, In some aspects, the
wireless signal, or a related signal, can provide the correlation between data offset
state(s) and network configuration state(s). Accordingly, a terminal capable of
demodulating the wireless signal and identifying the data offset state(s) can also identify
the correlated network configuration state(s). Method 900 provides a significant
advantage for conveying network state information because current signal resources can
be utilized; the wireless signal does not have to allocate resources utilized by other
functions of the network to convey the state information.
[0090] Fig. 10 depicts a flowchart of an example methodology 1000 for
identifying modified rate-matching and extracting transmit system state at a receiver. At 1002, method 1000 can identify a distinct data state in resources of a wireless signal.

The state can he related to rate-matching a data stream (e.g.. comprising broadcast data, unicast data, synchronization/acquisition data, control data, traffic data, and so on) into an output stream suitable for transmission. As described herein, the data states can be generated by employing one or more data offsets in rate-matching the data stream to the output stream.
[0091] At 1004, method 1000 can ascertain network information by mapping the
distinct data state to a rules map that correlates data stale(s) and network stale(s), Thus,
for instance, if a particular data offset state is identified at reference number 1002 (e.g.,
a Qo slate, where a 0lh bit of the data stream is mapped to a 0lh bit position of the output
stream), the rules map can be referenced to determine whether a particular system
state(s) is associated with the identified data offset stale. If so. additional signals can be
analyzed, demodulated, conditioned, etc., based on parameters associated with the
particular system state). Additionally, by employing data offset as the distinct data
slate, significant stale distinction can be provided at the receiving device, resulting in
great probability that the system slate(s) will be decoded properly. Thus, method 1000
can generally improve reliability of wireless communications.
[0092] Fig. 11 illustrates a flowchart of a sample methodology 1100 for blind
decoding of transmit antenna configuration via identifying data offsets in demodulated data streams. At 1102, method 1100 can identify a data offset in resources of a received wireless signal. At 1104, method 1100 can access a rules map that correlates network system slates to data offset stales. At 1 106, method 1100 can optional obtain transmit antenna configuration information based on the data offset and the rules map. Alternatively, at 1108, method 1100 can obtain a number of transmission antennas (e.g.. in conjunction with a MIMO system) utilized by a base station of (he network. At II 10, method I 100 can configure a receiver in accordance with the antenna configuration/number of transmission antennas. Accordingly, the receiver can be configured for uniform and homogenous communication with various network system configurations by employing method 1100.
[0093] Fig. 12 depicts a block diagram of an example system 1200 that can
facilitate wireless communication according to some aspects disclosed herein. On a downlink, at access point 1205, a transmit (TX) data processor 1210 receives, formats, codes, interleaves, and modulates (or symbol maps) traffic data and provides modulation symbols ("data symbols"). A symbol modulator 1215 receives and

processes the data symbols and pilot symbols and provides a stream of symbols. The symbol modulator 1215 multiplexes data and pilot symbols and provides them to a transmitter unit (TMTR) 1220. Each transmit symbol can be a data symbol, a pilot symbol, or a signal value of zero. The pilot symbols can be sent continuously in each symbol period. The pilot symbols can be frequency division multiplexed (FDM). orthogonal frequency division multiplexed (OFDM), time division multiplexed (TDM), code division multiplexed (CDM), or a suitable combination thereof or of like modulation and/or transmission techniques.
[0094] TMTR 1220 receives and converts the stream of symbols into one or
more analog signals and further conditions (e.g., amplifies, filters, and frequency
upconverts) the analog signals to generate a downlink signal suitable for transmission
over the wireless channel. The downlink signal is then transmitted through an antenna
1225 to the terminals. At terminal 1230, an antenna 1235 receives the downlink signal
and provides a received signal to a receiver unit (RCVR) 1240. Receiver unit 1240
conditions (e.#., fillers, amplifies, and frequency downconverts) the received signal and
digitizes the conditioned signal to obtain samples. A symbol demodulator 1245
demodulates and provides received pilot symbols to a processor 1250 for channel
estimation. Symbol demodulator 1245 further receives a frequency response estimate
for the downlink from processor 1250, performs data demodulation on the received data
symbols to obtain data symbol estimates (which are estimates of the transmitted data
symbols), and provides the data symbol estimates to an RX data processor 1255, which
demodulates (i.e.. symbol demaps), deinterleaves, and decodes the data symbol
estimates to recover the transmitted traffic data. The processing by symbol demodulator
1245 and RX data processor 1255 is complementary to the processing by symbol
modulator 1215 and TX data processor 1210, respectively, at access point 1205.
[0095] On the uplink, a TX data processor 1260 processes traffic data and
provides data symbols. A symbol modulator 1265 receives and multiplexes the data symbols with pilot symbols, performs modulation, and provides a stream of symbols. A transmitter unit \ 270 then receives and processes the stream of symbols to generate an uplink signal, which is transmitted by the antenna 1235 to the access point 1205. Specifically, the uplink signal can be in accordance with SC-FDMA requirements and can include frequency hopping mechanisms as described herein.

[0096] At access point 1205. the uplink signal from terminal 1230 is received by
the antenna 1225 and processed by a receiver unit 1275 to obtain samples. A symbol
demodulator 1280 (hen processes the samples and provides received pilot symbols and
data symbol estimates for the uplink. An RX data processor 1285 processes the data
symbol estimates to recover the traffic data transmitted by terminal 1230. A processor
1290 performs channel estimation for each active terminal transmitting on the uplink.
Multiple terminals can transmit pilot concurrently on the uplink on their respective
assigned sets of pilot subbands, where the pilot subband sets can be interlaced.
[0097] Processors 1290 and 1250 direct {e.g.. control, coordinate, manage, etc.)
operation at access point 1205 and terminal 1230, respectively. Respective processors
1290 and 1250 can be associated with memory units (not shown) that store program
codes and data. Processors 1290 and 1250 can also perform computations to derive
frequency and impulse response estimates for the uplink and downlink, respectively.
[0098] For a multiple-access system {e.g., SC-FDMA, FDMA. OFDMA.
CDMA, TDMA, etc.), multiple terminals can transmit concurrently on the uplink. For
such a system, the pilot subbands can be shared among different terminals. The channel
estimation techniques can be used in cases where the pilot subbands for each terminal
span the entire operating band (possibly except for the band edges), Such a pilot
subband structure would be desirable to obtain frequency diversity for each terminal.
The techniques described herein can be implemented by various means, For example,
these techniques can be implemented in hardware, software, or a combination thereof,
as described herein. Software codes can be stored in physical memory (not depicted) or
virtual memory and executed by the processors 1290 and 1250.
[0099] Figs. 13 and 14 depict block diagrams of example systems 1300, 1400
that conveys and decode, respectively, network system information utilizing modified rate-matching techniques of the subject disclosure. For example, systems 1300, 1400 can reside at least partially within a wireless communication network and/or within a transmitter such as a node, base station, access point, or the like. It is to be appreciated that systems 1300, 1400 are represented as including functional blocks, which can be functional blocks that represent functions implemented by a processor, software, or combination thereof (e.g., firmware).
[00100] Turning specifically to system \ 300. a first module 1302 for segmenting
a wireless signal is provided. The module can employ various time, frequency, code,

symbol or like divisions of (he wireless signal to provide multiple signal resources.
Each resource can be utilized to wirelessly transmit information. Additionally, groups
of resources can be allocated to categories of information, such as traffic, control,
synchronization/acquisition, or like information, or combinations thereof. Accordingly,
a receiving device can analyze a predetermined group of data to find information with a
category associated with such group (e.g., control channel information can be accessed
by analyzing a group of resources allocated to control channel information, and so on).
[00101] Additionally, system 1300 comprises a second module 1304 for
employing a data offset state to convey network information. The module 1304 can
implement the data offset state in conjunction with rale-matching a coded stream of data
into an output stream suitable for mapping to a resource(s) of the wireless signal. The
data offset slate can further be correlated with a stale of the network, such thai the
wireless signal inherently can convey the network slate based on the above rate-
matching. Thus, system information can be conveyed utilizing existing allocation of
signal resources, to minimize effects on existing control, acquisition and traffic data.
[00102] In regard to system 1400, a first module 1402 is provided for identifying
a data offset state in a received wireless signal. The module can employ a rules map
that contains instructions for identifying the offset state from demodulated data streams
of the received signal. Additionally, a second module 1404 is provided for correlating
the offset state with system information. Thus, for instance, the module 1404 can
comprise the above rules map which can also relate network configuration state and
offset state. In some aspects of the subject disclosure, the module 1404 can also obtain
an updated rules map from the wireless signal or a related signal (e.g.. a unicast message
transmitted to a receiver device associated with system 1400). Accordingly, changes in
network state - offset state correlations and/or instructions for identifying offset slate
can be obtained and stored in memory (not depicted) associated with system 1400.
[00103] In addition to the foregoing, system 1400 can comprise a third module
1406 for ascertaining a system state. Such module 1406 can utilize the data offset obtained by the first module 1402 and reference the second module 1406 to identify a system network state associated with the data offset. Additionally, module 1406 can configure wireless reception components associated with system 1400 (or. e.g., the receiving device associated with system 1400) to operate in accordance with parameters

suitable for the identified system state. Thus, system 1400 can facilitate uniform and
homogenous wireless communications for disparate mobile network states,
[00104] What has been described above includes examples of aspects of the
claimed subject matter. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the claimed subject matter, but one of ordinary skill in the art may recognize that many further combinations and permutations of the disclosed subject matter are possible, Accordingly, the disclosed subject matter is intended to embrace ail such alterations, modifications and variations that fall within the spirit and scope of the appended claims. Furthermore, to the extent that the terms "includes,*' "has" or "having" arc used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim.

CLAIMS
What is claimed is:
i. A method of wireless communications, comprising:
segmenting a wireless signal into multiple resources: and
conveying wireless network system information by employing at leas: one
distinct data offset in rate matching a data stream to resources of the wireless signal.
2. The method of claim 1, further comprising employing multiple bit sequences of a primary broadcast channel (PBCH) as the data stream.
3. The method of claim 1, further comprising conveying distinct transmit antenna configurations of the network system by employing the at least one distinct data offset.
4. The method of claim I, further comprising conveying a number of transmit antennas of the network system by employing the at least one distinct data offset.
5. The method of claim 1, further comprising representing a distinct state of the network system with the at least one distinct data offset.
6. The method of claim 1, further comprising representing a distinct state of a transmit antenna configuration with the at least one distinct data offset.
7. The method of claim 1, employing the least one distinct data offset in rate matching further comprises writing a first bit of the data stream to different bit positions of an output stream for different states of the network system, the output stream mapped to the resources of the wireless signal.
8. The method of claim i, employing the at least one distinct data offset in rate matching further comprises mapping different bits of the data stream to a first bit

position of an output stream for different slates of the network system, the output stream mapped to the resources of the wireless signal.
9. The method of claim 8, further comprising writing to the first bit position of the
output stream at least one of:
an Nl-th bit of the data stream for a first transmit antenna configuration; an N2-th bit of the data stream for a second transmit antenna configuration; or an N3-rd bit of the data stream for a third transmit antenna configuration, where Ni, N2 and N3 represent different bits of (he data stream.
10. The method of claim 1, further comprising employing three distinct data offsets
as the at least one distinct data offset, the three data offsets represent a number of
transmission antenna configurations as follows;
(~(2(, ' Transmission Antenna
A(u.) =-^ \) 2 Transmission Antennas
£/, 4 Transmission Antennas
/here £/,. £/ and Q are different values.
wt
1 I. The method of claim 10, further comprising generating a rate matching output sequence c\ that is written to the resources of the wireless signal, the rate matching
output sequence generated from a data stream sequence wk employing, at least in part, the following formula:
ek — w j ■•■ Mi/) mod k'u,
where Kw= 3Kn , Kn - length of wk, 0 .
12. An apparatus configured for wireless communications, comprising:
a signal parser that segments a wireless signal into multiple resources;

a signal processor that conveys wireless network system information by employing at least one distinct data offset in rate matching a data stream to resources of (he wireless signal; and
memory coupled to the signal processor.
13. The apparatus of claim 12, the signal processor employs multiple bit sequences of a PBCH as the data stream.
14. The apparatus of claim 12, the signal processor conveys distinct transmit antenna configurations of the network system by employing the at least one distinct data offset.
15. The apparatus of claim 12, the signal processor conveys a number of transmit antennas of the network system by employing the at least one distinct data offset.
16. The apparatus of claim 12, the signal processor represents a distinct slate of the network system with the at least one distinct data offset.
17. The apparatus of claim 12, the signal processor represents a distinct stale of a transmit antenna configuration with the at least one distinct data offset.
18. The apparatus of claim 12. further comprising a mapping module that writes a first bit of the data stream to different bit positions of an output stream for different states of the network system, wherein the output stream is modulated into the resources of the wireless signal.
19. The apparatus of claim 12, wherein;
a mapping module writes different bits of the data stream to a first bit position of an output stream for different states of the network system; and

the signal processor modulates the output stream into the resources of the wireless signal.
20. The apparatus of claim 19, the mapping module writes to the first bit position of
the output stream at least one of:
an N1 -th bit of the data stream for a first transmit antenna configuration: an N2-th bit of the data stream for a second transmit antenna configuration; or an N3-rd bit of the data stream for a third transmit antenna configuration, where N12, N2 and N3 represent different bits of the data stream.
21. The apparatus of claim 12, the signal processor employs three distinct data
offsets as the at least one distinct data offset, the three data offsets represent a number of
transmission antenna configurations as follows:
^(J^y I Transmission Antenna
A(u) -^ ^J 2 Transmission Antennas
Q2 4 Transmission Antennas
wi
'here Q^, Q} and Q are different values.
22. The apparatus of claim 21, further comprising a sequence module that generates
a rate matching output sequence ek, written to the resources of the wireless signal, from
a data stream sequence wh at least in part by employing the following formula: where Kw= 7>KU , Kn = length of wk, 0 23. An apparatus configured for wireless communications, comprising:
means for segmenting a wireless signal into multiple resources; and
means for conveying wireless network system information by employing at least one distinct data offset in rate matching a data stream to resources of the wireless signal.

24. A processor configured for wireless communications, comprising;
a first module that segments a wireless signal into multiple resources; and a second module that conveys wireless network system information by
employing at least one distinct data offset in rate matching a data stream to resources of
the wireless signal.
25. A a computer program product, comprising:
a computer-readable medium comprising code for; segmenting a wireless signal into multiple resources; and conveying wireless network system information by employing at least one distinct data offset in rate matching a data stream to resources of the wireless signal.
26. A method of detecting a wireless access point (AP). comprising;
identifying at least one distinct data offset in one or more resources of a received wireless signal; and
mapping the at least one distinct data offset to an offset rules map lo ascertain network system information from the received wireless signal.
27. The method of claim 26, further comprising employing (he rules map lo identify an antenna configuration associated with transmission of the wireless signal.
28. The method of claim 26, further comprising employing the rules map to identify a number of antennas associated with transmitting the wireless signal.
29. The method of claim 26, further comprising analyzing acquisition pilot or synchronization signal resources of the wireless signal to obtain the data offset(s).
30. The method of claim 26, further comprising analyzing control channel resources of the wireless signal to obtain the data offset(s).
31. The method of claim 26, further comprising analyzing traffic channel resources of the wireless signal to obtain the data offset(s).

a second module that maps the at least one distinct data offset to an offset rules map lo ascertain network system information from the received wireless signal.
50. A computer program product, comprising:
a computer-readable medium comprising code for;
identifying at least one distinct data offset in one or more resources of a received wireless signal; and
mapping the at least one distinct data offset to an offset rules map to ascertain network system information from the received wireless signal.

Dated this 08th day of February 2010

Of Anand and Anand Advocates Agents for the Applicant