The disclosure relates to a system and a method for allocating resources in wireless networks, and in particularly to allocating resources and mitigating interference in cellular mobile communication systems.
The 3GPP Long Term Evolution (“LTE”) Specifications define two types of interference mitigation techniques: The first one being interference mitigation by interference reduction, and the second one is interference mitigation by inter cell interference coordination (ICIC). The 3GPP standard handles the two types of interference minimization differently. The first type, interference reduction, is used in conjunction with coverage and capacity optimization. The enablement of interference reduction are RF techniques such as antenna tilt, transmit power reduction, and handover mechanisms.
The LTE Recommendation has defined an interface between base stations (referred to herein as “eNBs”) which enables the transfer of ICIC related indicators. This interface is referred to as X2. These ICIC function indicators are: Relative Narrowband Transmit Power Indicator (“RNTPI”), High Interference Indicator (“HII”), and Interference Overload Indicator (“OI”).
The RNTPI indicator message is sent to neighbor eNBs. It contains 1 bit per each physical resource block (PRB) in the downlink transmission, indicating if the transmission power associated with that PRB will be greater than a pre-defined threshold. Thus, neighbor eNBs may anticipate which bands would suffer more severe interference and take the appropriate scheduling decisions immediately, rather than waiting to and relying on the UEs' Channel Quality Information (“CQI”) reports.
The HII indicator for uplink transmissions has a somewhat similar function as that which was described above in connection with the RNTPI message for downlink transmissions. There is one bit per each PRB, enabling the neighboring eNBs to assess whether they should expect high interference power in the near future. Reference Signal Received Power (“RSRP”) measurements which are reported as part of handover measurement reports, can identify cell edge UEs. In a similar way, this indicator can be used to identify the bands used in a frequency-partitioning scheme.
While the previously described X2 messages are sent out proactively by eNBs, the OI indicator is only triggered when high-interference in the uplink direction is detected by an eNB. An overload indication will be sent to neighbor eNBs whose UEs are potentially the source of this high interference. The message contains a low, medium, or high interference level indication per each PRB. However, the question, which cell is the one responsible for the high interference is of course not a trivial question to answer.
According to the 3GPP Specifications, X2 based ICIC does not include any provisioning for a decision making process, consequently, ICIC algorithms in base stations, which are originated by different vendors, may use completely different logics and criteria. This essentially limits the X2-based ICIC solution to areas where the base stations originate from a single vendor. While in existing macro deployments this constrain might still be achieved, for modern multi-RAT networks (LTE overlay over UMTS network) and HetNet networks, such a requirement of having one vendor's equipment is too restrictive, if not impossible.
According to 3GPP TS 36.300, Inter-cell interference coordination is associated with managing radio resources (notably the radio resource blocks) such that inter-cell interference is kept under control. ICIC is inherently a multi-cell, radio resource management (“RRM”) function that needs to take into account information (e.g. the resource usage status and traffic load situation) obtained from various cells. Furthermore, an ICIC method may be different in the uplink and downlink.
The 3GPP Release 10 introduced a new LTE network concept for the heterogeneous networks (HetNets), in contrast to previous network releases, which deal with homogeneous networks. HetNet is defined in that release as a network of eNBs with different capabilities, most importantly, different Tx-power classes.
However, heterogeneous networks pose new ICIC challenges. A first ICIC challenge involves macro UE that roams about a Home eNB (HeNB) and is not part of the closed subscriber group (“CSG”). In that scenario the Macro eNB UE transmission will become uplink interference to the Home eNB authorized UEs. The second ICIC challenge is macro eNB transmission that forms downlink interference to Pico eNB center cell UE. In order to enable the use of HetNet, enhanced ICIC (eICIC) Rel. 10 requires that all members of a HetNet (Macro, Pico, HeNB) should be capable of interconnecting by using the X2 interface.
Soft Fractional Frequency Reuse (“FRR”) technique implements separation of transmissions in neighbor LTE cells. The separation is performed by allocating time-frequency resources in blocks (partitions) that appear as rectangles in time-frequency plane as illustrated for example in
There are many FFR schemes used for HetNets that allow significant reuse of spectrum. For example in
However, a solution is still required that enables automatic bandwidth partitioning for example between macro and metro eNBs, and particularly in cases where base stations produced by different vendors and located at the same geographical vicinity, are involved.
The disclosure may be summarized by referring to the appended claims.
It is an object of the present disclosure to provide a method and system to enable dynamic allocation of air interface resources of the cellular network.
It is another object of the present disclosure to provide a method and system to enable dynamic allocation of air interface resources of the cellular network partially by a central management entity and partially by local entities.
Other objects of the present disclosure will become apparent from the following description.
According to a first embodiment there is provided a method for dynamic allocation of air interface resources in a cellular network comprising at least three wireless cells, all located within a geographical proximity of each other and a plurality of mobile devices currently located within these at least three wireless cells, wherein the method comprises the steps of:
The term “semi-static” as used herein throughout the specification and claims should be understood as characterization of one out of two processes being carried out in parallel, wherein the frequency at which the other of the two processes is carried out is substantially higher than the frequency at which the semi static process is carried out. In the present case, the frequency at which the process defined in step b is carried out is substantially lower than the frequency at which step c is carried out, hence step b is semi static with respect to step b.
The term “base station” (BS) as used herein throughout the specification and claims should be understood as a communication entity that contains equipment for transmitting and receiving radio signals (transceivers), antennas. This term should be understood to encompass eNB for example if the cellular network is compatible with the LTE Specifications.
By yet another embodiment, an air interface resource block is characterized by at least one member of the group that consists of: interval time for transmission, transmission frequency, a set of subcarriers, and the like.
By still another embodiment, information related to coordinated use of particular air interface resource block, includes settings of transmission power, for example power density values or limits, for control and user planes at the base station or at the mobile device for which the air interface resource block is allocated.
In accordance with another embodiment, the method further comprises a step of:
Preferably, step c) is repeated every pre-defined period of time which extends up to few hundreds of msec, e.g. from about few tens of msec up to about 150 to 200 msec.
In accordance with another embodiment, steps a) and b) are repeated at a frequency which is substantially less than a frequency at which step c) is repeated.
By still another embodiment, the information that relates to allocation of blocks of air interface resources according to step b) is communicated to respective base stations in a form of time based periodic pattern having a length of N radio frames. In such a case, the number and properties of the blocks of air interface resources for coordinated and uncoordinated use are preferably synchronously changed by all participating base stations in every air interface frame of N consecutive air interface frames.
By yet another embodiment, the cellular network is a heterogeneous cellular network (“HetNet”) comprising at least one macro cell and at least two small cells, all located within a geographical proximity of each other, wherein the group of base stations comprises at least one base station associated with a macro cell and at least two base stations each associated with a different small cell, and wherein the at least two members that exchange messages directly with each other in order to coordinate which part of the blocks of air interface resources allocated by the central management entity for coordinated use, will be used by each of these at least two base stations, are the at least two base stations associated with small cells.
According to another aspect, there is provided a communication system configured to dynamically allocate air interface resources in a cellular network comprising at least three wireless cells, all located within a geographical proximity of each other, and a plurality of mobile devices currently located within these at least three wireless cells, wherein the system comprises:
The central management entity (e.g. a Centralized Self Optimization Network, a “cSON”, entity) may be connected either to a management system of the cellular network and/or to a management system of a plurality of small cells, thereby enabling a managing entity (e.g. the cSON) to retrieve and provide information from the management system it is connected to and/or in a synchronized manner from both systems if it is connected indeed to both.
By yet another embodiment of this aspect, an air interface resource block is characterized by at least one member of the group that consists of: interval time for transmission, transmission frequency, a set of subcarriers, and the like.
According to still another embodiment, the at least two members of the group of base stations are further operable to repeat the exchange of the messages in order to negotiate use of resources within the blocks of air interface resources designated for coordinated use, i.e. for reestablishing which part of air interface resource blocks allocated by the central management entity for coordinated use, will be used by each of the base stations. Preferably, these messages are repeated every pre-defined period of time, which extends up to tens of msec.
In accordance with another embodiment, the one or more processors of the central management entity are further operable to re-define at least one of the one or more classification rule for classifying at least one of the plurality of mobile devices and the information provisioning to a group of base stations associated with the at least three cells, at a frequency which is substantially less than that at which the at least two members of the group of base stations exchange messages there-between.
By yet another embodiment, the cellular network is a heterogeneous cellular network (“HetNet”) comprising at least one macro cell and at least two small cells, all located within a geographical proximity of each other, wherein the group of base stations comprises at least one base station associated with a macro cell and at least two base stations each associated with a different small cell, and wherein the at least two members that exchange messages directly with each other in order to coordinate which part of the blocks of air interface resources allocated by the central management entity for coordinated use, will be used by each of these at least two base stations, are the at least two base stations associated with small cells.
For a more complete understanding of the present invention, reference is now made to the following detailed description taken in conjunction with the accompanying drawings wherein:
In this disclosure, the term “comprising” is intended to have an open-ended meaning so that when a first element is stated as comprising a second element, the first element may also include one or more other elements that are not necessarily identified or described herein, or recited in the claims.
In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a better understanding of the present disclosure by way of examples. It should be apparent, however, that the present disclosure may be practiced without these specific details.
Let us consider a particular example of deploying eNBs in a HetNet, which comprises small cells (i.e. metro cells), wherein the eNBs are configured to operate in one of the following two modes:
In recent years, wireless networks operators have started to deploy their own or rely on end users to buy very small Base Stations, in order to meet the increasing demand for data traffic. This new type of cell sites, referred to herein below as “small cells” or “metro cells”, used in conjunction with wireless cells of the traditional cellular networks (macro cells). Networks that include both macro cells and metrocells are referred to herein as heterogeneous networks (HetNets).
The term “small cells” as used herein and throughout the specification and claims encompass femtocells, picocells, microcells, and metrocells. Small-cell networks can also be realized by means of distributed radio technology consisting of centralized baseband units and remote radio heads. Beamforming technology (focusing a radio signal on a very specific area) can be utilized to further enhance or focus small cell coverage. A common factor in all these approaches to small cells is that they are centrally managed by mobile network operators.
The following is a simplified example demonstrating one option of carrying out the above-discussed Mode A:
Now, let us assume that macro or metro eNBs are operable in accordance with the present disclosure by implementing Mode B referred to above.
Examples of implementing such a configuration are demonstrated in the following non-exclusive Table 2:
In other words, the central management entity defines one or more classification rules for classifying the various mobile devices; for example CELL_EDGE1 in Table 2, transmit these rules to respective eNBs, and the eNB then applies these classification rule(s) to classify the mobile devices being in communication therewith.
For the case of Mode B operation, let us consider X2-based ICIC where eNBs exchange real time information that relates to past and future events associated with interference management. This in fact exemplifies an embodiment of the present disclosure according to which an X2-based dSON is configured by the central management entity, namely the cSON, and may include any one of the following:
This information is preferably used under real time conditions.
The following is a simplified example demonstrating an option of configuring the X2 ICIC by the cSON as follows:
Now, in accordance with the present disclosure, let us consider a method for allocating partitions (blocks) for coordinated use by a group (cluster) of eNBs operating in Mode B configuration.
In the description and claims of the present application, each of the verbs, “comprise” “include” and “have”, and conjugates thereof, are used to indicate that the object or objects of the verb are not necessarily a complete listing of members, components, elements or parts of the subject or subjects of the verb.
The present disclosure has been described using detailed descriptions of embodiments thereof that are provided by way of example and are not intended to limit the scope of the disclosure in any way. The described embodiments comprise different features, not all of which are required in all embodiments of the disclosure. Some embodiments of the present disclosure utilize only some of the features or possible combinations of the features. Variations of embodiments of the present disclosure that are described and embodiments of the present disclosure comprising different combinations of features noted in the described embodiments will occur to persons of the art. The scope of the disclosure is limited only by the following claims.
Number | Date | Country | Kind |
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224926 | Feb 2013 | IL | national |
This Application is a continuation (and claims the benefit of priority under 35 U.S.C. §120) of U.S. application Ser. No. 14/187,024, filed Feb. 21, 2014 entitled “METHOD AND SYSTEM FOR DYNAMIC ALLOCATION OF RESOURCES IN A CELLULAR NETWORK,” Inventors Vladimir Yanover, et al., which application is based on and claims the benefit of priority under 35 U.S.C. §119 from Israeli Patent Application No. 224926 filed in the Israel Patent Office on Feb. 26, 2013, entitled “METHOD AND SYSTEM FOR DYNAMIC ALLOCATION OF RESOURCES IN A CELLULAR NETWORK.” The disclosures of the prior applications are considered part of (and are incorporated in their entirety by reference in) the disclosure of this application.
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“ETSI TS 123 007 V12.6.0 (Oct. 2014) Technical Specification: Digital Cellular Telecommunications System (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Restoration procedures (EGPP TS 23.007 version 12.6.0 Release 12),” ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Oct. 2014; 93 pages. |
“ETSI TS 123 401 V9.5.0 (Jun. 2010) Technical Specification: LTE; General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (3GPP TS 23.401 version 9.5.0 Release 9),” ETSI, 650 Route des Lucioles, F06921, Sophia Antipolis Cedex—France, Jun. 2010; See Section 4, pp. 15-46. |
“ETSI TS 123 401 V11.10.0 (Jul. 2014) Technical Specification: LTE; General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (3GPP TS 23.401 version 11.10.0 Release 11),” [Relevant Sections 5.3.1.2 and 5.3.4.3 only]; ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Jul. 2014. |
“ETSI TS 123 401 V12.6.0 (Sep. 2014) Technical Specification: LTE; General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (3GPP TS 23.401 version 12.6.0 Release 12),” ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Sep. 2014; 308 pages. |
“ETSI TS 123 401 V12.70 (Jan. 2015) Technical Specification: LTE; General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (EGPP TS 23.401 version 12.7.0 Release 12),” Section 4 only, European Telecommunications Standards Institute, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex, France; Jan. 2015; 77 pages. |
“ETSI TS 125 133 V12.6.0 (Jan. 2013) Technical Specification: Universal Mobile Telecommunications System 9UMTS); Requirements for support of radio resource management (FDD) (3GPP TS 25.133 version 12.6.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Jan. 2015; 368 pages. |
“ETSI TS 125 211 V11.5.0 (Jul. 2014) Technical Specification: Universal Mobile Telecommunications System (UMTS); Physical channels and mapping of transport channels onto physical channels (FDD) (3GPP TS 25.211 version 11.5.0 Release 11),” [Relevant Section 7 only]; ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Jul. 2014. |
“ETSI TS 125 215 V 12.0.0 (Sep. 2014) Technical Specification: Universal Mobile Telecommunications System (UMTS); Physical layer; Measurements (FDD) (3GPP TS 25.215 version 12.0.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Sep. 2014; 26 pages. |
“ETSI TS 125 224 V12.0.0 (Sep. 2014) Technical Specification: Universal Mobile Telecommunications System (UMTS); Physical layer procedures (TDD) (3GPP TS 25.224 version 12.0.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Sep. 2014; 86 pages. |
“ETSI TS 125 331 V11.10.0 (Jul. 2014) Technical Specification: Universal Mobile Telecommunications System (UMTS); Radio Resource Control (RRC); Protocol Specification,” ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex-France, Jul. 2014, © European Telecommunications Standards Institute 2014. All Rights Reserved. [Relevant Portions: §7.2.2 pp. 55-58; §8.1.2 pp. 105-108; §8.1.4 pp. 126-129; §8.3.1 pp. 215-260; §8.3.8-8.3.9 pp. 289-292; §8.5.21 pp. 357-365; §10.2.7 pp. 620-623; Annex B.3 pp. 2045-2052]. |
“ETSI TS 125 367 V9.4.0, Universal Mobile Telecommunications System (UMTS); Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (3GPP TS25.367 version 9.4.0 Release 9)”, European Telecommunications Standards Institute, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex, France, Jun. 2010; 17 pages. |
“ETSI TS-125-469 V9.3.0 (Oct. 2010) Technical Specification: Universal Mobile Telecommunications System (UMTS); UTRAN luh interface Home Node B (HNG) Application Part (HNBAP) signaling (3GPP TS 25.469 version 9.3.0 Release 9),” © European Telecommunications Standards Institute 2010; Oct. 2010; 64 pages. |
“ETSI TS 125 469 v11.2.0, Universal Mobile Telecommunications System (UMTS); UTRAN luh interface Home Node B (HNB); Application Part (HNBAP) signalling (3GPP TS25.469 version 11.2.0 Release 11),” European Telecommunications Standards Institute, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex, France, Apr. 2013, 78 pages. |
“ETSI TS 129 061 V12.7.0 (Oct. 2014) Technical Specification: Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Interworking between the Public Land Mobile Network (PLMN) supporting packet based services and Packet Data Networks (PDN) (3GPP TS 29.061 version 12.7.0 Release 12),” ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Oct. 2014; 170 pages. |
“ETSI TS 129 212 V12.6.0 (Oct. 2014) Technical Specification: Universal Mobile Telecommunications System (UMTS); LTE; Policy and Charging Control (PCC); Reference Points (EGPP TS 29.212 version 12.6.0 Release 12),” ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Oct. 2014, 232 pages. |
“ETSI TS 129 213 V12.5.0 (Oct. 2014) Technical Specification: Digital Cellular Telecommunications System (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Policy and charging control signalling flows and Quality of Service (QoS) parameter mapping (3GPP TS 29.213 version 12.5.0 Release 12),”[Relevant Sections 3, 4, 8 and 8 only], ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Oct. 2014. |
“ETSI TS 129 214 V12.5.0 (Oct. 2014) Technical Specification: Universal Mobile Telecommunications System (UMTS); LTE; Policy and charging control over Rx reference point (3GPP TS 29.214 version 12.5.0 Release 12),” ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Oct. 2014; 64 pages. |
“ETSI TS 136 111 V12.0.0 (Oct. 2014) Technical Specification: LTE; Location Measurement Unit (LMU) performance specification; Network based positioning systems in Evolved Universal Terrestrial Radio Access Network (E-UTRAN) (3GPP TS 36.111 version 12.0.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France; Oct. 2014. |
“ETSI TS 136 133 V12.5.0 (Nov. 2014) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Requirements for support of radio resource management (3GPP TS 36.133 version 12.5.0 Release 12),” [Relevant Sections 8-10 only]; ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Nov. 2014. |
“ETSI TS 136 133 V12-9-0 (Oct. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Requirements for support of Radio Resource management (3GPP TS 36.133 version 12.9.0 Release 12),” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France, Oct. 2015 Sections 1 thru 9 only; 252 pages. |
“ETSI TS 136 201 V12.1.0 (Feb. 2015) Technical Specificaton: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); LTE physical layer; General description (3GPP TS 36.201 version 12.1.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Feb. 2015; 15 pages. |
“ETSI TS 136 211 V12.5.0 (Apr. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (3GPP TS 36.211 version 12.5.0 Release 12);” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France; Apr. 2015. |
“ETSI TS 136 213 V12.4.0 (Feb. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures (3GPP TS 36.213 version 12.4.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Feb. 2015; 227 pages. |
“ETSI TS 136 213 V12.7.0 (Oct. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures (3GPP TS 36.213 version 12.7.0 Release 12);” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France, Oct. 2015; 243 pages. |
“ETSI TS 136 213 V9.3.0 (Oct. 2010) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures (3GPP TS 36.213 version 9.3.0 Release 9);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France; Oct. 2010. |
“ETSI TS 136 214 V9.2.0 (Jun. 2010) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer; Measurements (3GPP TS 36.214 version 9.2.0 Release 9);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France; Jun. 2010. |
“ETSI TS 136 300 V12-7-0 (Oct. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (3GPP TS 36.300 version 12.7.0 Release 12);” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France, Oct. 2015; 264 pages. |
“ETSI TS 136 304 V12-6-0 (Nov. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) procedures in idle mode (3GPP TS 36.304 version 12.6.0 Release 12);” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France, Nov. 2015; 40 pages. |
“ETSI TS 136 321 V12.7.0 (Oct. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification (3GPP TS 36.321 version 12.7.0 Release 12);” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France, Oct. 2015; 79 pages. |
“ETSI TS 136 331 V12.3.0 (Sep. 2014) Technical Specificaton: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification (3GPP TS 36.311 version 12.3.0 Release 12),” [Relevant Section 5.3.2 only]; ETSI, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Sep. 2014. |
“ETSI TS 136 331 V12.7.0 (Oct. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol Specification (3GPP TS 36.331 version 12.7.0 Release 12);” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France, Oct. 2015; 455 pages. |
“ETSI TS 136 423 V8.3.0 (Nov. 2008) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application Protocol (X2AP) (3GPP TS 36.423 version 8.3.0 Release 8);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F06921 Sophia Antipolis Cedex—France; Nov. 2008. |
“ETSI TS 136 211 V12.4.0 (Feb. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (3GPP TS 36.211 version 12.4.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Feb. 2015; 126 pages. |
“ETSI TS 136 211 V12.5.0 (Apr. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (3GPP TS 36.211 version 12.5.0 Release 12),” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Apr. 2015; 139 pages. |
“ETSI TS 136 212 V12.3.0 (Feb. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding (3GPP TS 36.212 version 12.3.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Feb. 2015; 91 pages. |
“ETSI TS 136 213 V 12.4.0 (Feb. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures (3GPP TS 36.213 version 12.4.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Feb. 2015; 227 pages. |
“ETSI TS 136 212 V12.6.0 (Oct. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding (3GPP TS 36.212 version 12.6.0 Release 12);” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France, Oct. 2015; 96 pages. |
“ETSI TS 136 214 V10.1.0 (Apr. 2011) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer; Measurements (3GPP TS 36.214 version 10.1.0 Release 10);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Apr. 2011; 15 pages. |
“ETSI TS 136 300 V12.4.0 (Feb. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (3GPP TS 36.300 version 12.4.0 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Feb. 2015; 266 pages. |
“ETSI TS 136 423 V12.4.2 (Feb. 2015) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application Protocol (X2AP) (3GPP TS 36.423 version 12.4.2 Release 12);” ETSI, European Telecommunications Standards Institute 2012, 650 Route des Lucioles, F-06921 Sophia Antipolis Cedex—France, Feb. 2015; 205 pages. |
“ETSI TS-136-423 V9.4.0 (Oct. 2010) Technical Specification: LTE; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application Protocol (X2AP) (3GPP TS 36.423 version 9.4.0 Release 9),” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France, Oct. 2010, Section 8.3.8. |
“ETSI GS NFV 002 V1.1.1 (Oct. 2013) Group Specification: Network Functions Virtualisation (NFV); Architectural Framework,” ETSI, European Telecommunications Standards Institute, 650 Route des Lucioles F-06921 Sophia Antipolis Cedex—France, Oct. 2013; 21 pages. |
“3GPP LTE Packet Data Convergence Protocol (PDCP) Sub Layer,” EventHelix.com Inc., first published on or about Jan. 1, 2010; 20 pages. |
“3GPP TR23.705 V0.11.0 (May 2014) Technical Report: 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Study on system enhancements for user plane congestion management (Release 13),” 3GPP, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, May 2014, 64 pages. |
“3GPP TR 36.814 V9.0.0 (Mar. 2010) Technical Report: 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Further advancements for E-UTRA physical layer aspects (Release 9);” 3rd Generation Partnership Project (3GPP), Mar. 2010. |
“3GPP TR 23.852 (V12.0.0 (Sep. 2013) Technical Report: 3rd Generational Partnership Project; Technical Specification Group Services and System Aspects; Study on S2a Mobility based on GPRS Tunnelling Protocol (GTP) and Wireless Local Area Network (WLAN) access to the Enhanced Packet Core (EPC) network (SaMOG); Stage 2 (Release 12);” 3rd Generation Partnership Project (3GPP), Sep. 2013, 157 pages. |
“3GPP TS 22.368 V13.0.0 (Jun. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Service requirements for Machine-Type Communications (MTC); Stage 1 (Release 13),” 3rd Generation Partnership Project; Jun. 2014. |
“3GPP TS23.002 V12.5.0 (Jun. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Network architecture (Release 12),” 3GPP, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Jun. 2014; See Sections 1-5, pp. 11-76. |
“3GPP TS 23.060 V13.0.0 (Sep. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; General Packet Radio Service (GPRS); Service description; Stage 2 (Release 13),” [Relevant Sections 5.3.20 and 6.2.3 only]; 3rd Generation Partnership Project; Sep. 2014. |
“3GPP TS 23.203 V13.1.0 (Sep. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Policy and charging control architecture (Release 13),” [Relevant Sections 1-6 only]; 3rd Generation Partnership Project, Sep. 2014. |
“3GPP TS 23.401 V13.3.0 (Jun. 2015) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects;General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (Release 13),” 3rd Generation Partnership Project, 650 Route des Lucioles—Sophia Antipolis Valbonne—France, Jun. 2015; Sections 4 and 5 only. |
“3GPP TS 23.682 V12.2.0 (Jun. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Architecture enhancements to facilitate communications with packet data networks and applications (Release 12),” 3rd Generation Partnership Project; Jun. 2014. |
“3GPP TS 23.887 V12.0.0 (Dec. 2013) Technical Report: 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Study on Machine-Type Communications (MTC) and other mobile data applications communications enhancements (Release 12),” 3rd Generation Partnership Project; Dec. 2013. |
“3GPP TS 25.367 V11.0.0 (Jun. 2012) Technical Specification: Group Radio Access Network; Mobility procedures for Home Node B (HNG); Overall description; Stage 2 (Release 11),” 3rd Generation Partnership Project, Mobile Competence Centre; 650, Route Des Lucioles; F-06921 Sophia—Antipolis Cedex; France; Jun. 2012, 14 pages. |
“3GPP TS 29.212 V12.5.2 (Jul. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Policy and Charging Control (PCC); Reference Points (Release 12),” 3GPP, 650 Route des Lucioles, F-06921, Sophia Antipolis Cedex—France, Jul. 2014; Section 4, pp. 17-88. |
“3GPP TS 29-272 V12-6-0 (Sep. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Evolved Packet System (EPS); Mobility Management Entity (MME) and Serving GPRS Support Node (SGSN) related interfaces based on Diameter protocol (Releasel2),” [Relevant Sections 5 and 7.3.1-7.3.21 only]; 3rd Generation Partnership Project; Sep. 2014. |
“3GPP TS 29-274 V12-6-0 (Sep. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; 3GPP Evolved Packet System (EPS); Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C); Stage 3 (Release 12),” [Relevant Sections 4-6; 7.1-7.2.15; and 8.1-8.21.6 only]; 3rd Generation Partnership Project; Sep. 2014. |
“3GPP TS 32.522 v11.2.0, 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Telecommunication management; Self-Organizing Networks (SON) Policy Network Resource Model (NRM) Integration Reference Point (IRP); Information Service (IS) (Release 11),” 3GPP, 650 Route des Lucioles, F-06921 Sophia Antipolis Valbonne, France, Jun. 2012, 35 pages. |
“3GPP TS 36.300 V12.3.0 (Sep. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network 9E-UTRAN); Overall description; Stage 2 (Release 12),” [Relevant Sections 15 and 23 only]; 3rd Generation Partnership Project; Sep. 2014. |
“3GPP TS 36.300 V11.3.0 (Sep. 2012) Technical Specification: Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall Description; Stage 2 (Release 11),” 3rd Generation Partnership Project, Mobile Competence Centre; 650, Route Des Lucioles; F06921 Sophia—Antipolis Cedex; France; Sep. 2012, 205 pages. |
“3GPP TS 36.413 V9.5.1 (Jan. 2011)Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application Protocol (S1AP) (Release 9);” 3rd Generation Partnership Project, Jan. 2011. |
“3GPP TS 36.413 V12.3.0 (Sep. 2014) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application Protocol (S1AP) (Release 12),” [Relevant Sections 9.1.6 and 9.2.3.13 only]; 3rd Generation Partnership Project, Sep. 2014. |
“3GPP TS 37.320 V11.1.0 (Sep. 2012) Technical Specification: Group Radio Access Network; Universal Terrestrial Radio Access (UTRA) and Evolved Universal Terrestrial Radio Access (E-UTRA); Radio measurement collection for Minimization of Drive Tests (MDT); Overall description; Stage 2 (Release 11),” 3rd Generation Partnership Project, Mobile Competence Centre; 650, Route Des Lucioles; F-06921 Sophia—Antipolis Cedex; France; Sep. 2012, 21 pages. |
“3GPP TS 48.008 V8.8.0 (Dec. 2009) Technical Specification: 3rd Generation Partnership Project; Technical Specification Group GSM/EDGE Radio Access Network; Mobile Switching Centre—Base Station System (MSC-BSS) interface; Layer 3 specification (Release 8);” 3rd Generation Partnership Project, Mobile Competence Centre; 650, Route Des Lucioles; F-06921 Sophia—Antipolis Cedex; France; Dec. 2009; 208 pages. |
“3GPP Draft TR—R3018—V—100 (Oct. 2007) Technical Specification: Group Radio Access Network; Evolved UTRA and UTRAN; Radio Access Architecture and Interfaces (Release 7),” 3rd Generation Partnership Project, Mobile Competence Centre; 650, Route Des Lucioles; F-06921 Sophia—Antipolis Cedex; France; Oct. 2007, XP050423659. |
3GPP Draft R1-124276, Research in Motion UK Limited, “Scoping the UMTS HetNet Study,” 3rd Generation Partnership Project (3GPP), Mobile Competence Centre; 650; Route Des Lucioles; F-06921 Sophia—Antipolis; Sep. 2012; XP050662177. |
3GPP Draft R3-071432, Telecom Italia, et al., “Self-optimization use case: self-tuning of cell reselction parameters for load balancing,” 3rd Generation Partnership Project (3GPP), Mobile Competence Centre; 650; Route Des Lucioles; F-06921 Sophia—Antipolis; Aug. 2007; XP050162260. |
3GPP TSG-RAN WG3 #61bis, R3-081174, “Solution for interference reduction SON use case,” Orange, Alcatel-Lucent, Agenda Item 10.1.1c; Kansas City, MO, USA, May 5-9, 2008; 6 pages. |
3GPP-TSG-RAN WG3 Meeting #60, R3-081123, “Dynamic Setup of HNBs for Energy Savings and Interference Reduction,” Mitsubishi Electric, Agenda Item 10.1.1c; Kansas City, MO USA, May 5-9, 2008; 6 pages. |
3GPP-TSG-RAN3 #59, R3-080082, “Capacity and Coverage SON Use Case,” Alcatel-Lucent, Agenda Item 10.1.1.c; Sorrento, Italy, Feb. 11-15, 2008; 4 pages. |
“4G++: Advanced Performance Boosting Techniques in 4th Generation Wireless Systems; A National Telecommunication Regulatory Authority Funded Project; Deliverable D4.1, Work Package 4, Inter-Cell Interference Coordination,” 4G++ Project, Funded by the Egyptian National Telecommunications Regulatory Authority (NTRA); 75 pages First Published on or about Sep. 15, 2015. |
Adrangi, F., et al., “Chargeable User Identity,” Network Working Group RFC 4372, Jan. 2006, 10 pages. |
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Bernardos, Carlos J., et al., “Challenges of Designing Jointly the Backhaul and Radio Access Network in a Cloud-based Mobile Network,” Future Network & Mobile Summit 2013 Conference Proceedings, Jul. 2013; 10 pages. |
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Number | Date | Country | |
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20150382367 A1 | Dec 2015 | US |
Number | Date | Country | |
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Parent | 14187024 | Feb 2014 | US |
Child | 14845995 | US |