This way, the mobile network makes sure that we stay connected when we are on the move and the calls or data sessions can continue without any interruptions.
The best way to find any cellular towers including 5G towers is to check directly with your mobile operator. Thank you for reading this post, I hope it helped you in developing a better understanding of cellular networks. Sometimes, we need some extra support especially when preparing for a new job, or studying a new topic, or maybe just buying a new phone.
Whatever you are trying to do, here are some downloads that can help you:. You can then read Mobile Networks Made Easy which explains the network nodes e. Professionals: If you are an experienced professional but new to mobile communications, it may seem hard to compete with someone who has a decade of experience in the cellular industry. But not everyone who works in this industry is always up to date on the bigger picture and the challenges considering how quickly the industry evolves.
So if work in sales, marketing, product, project or any other area of business where you need a high-level view, Introduction to Mobile Communications can give you a quick start.
Also, here are some templates to help you prepare your own slides on product overview and product roadmap. This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
The user equipment unit UE 30 has certain location-indicative information by which the location of user equipment unit UE 30 can be deduced or otherwise determined. Upon entering into radio communication with user equipment unit UE 30 , the femto radio base station 28 f-new becomes privy to and knows the location-indicative information owned by user equipment unit UE In some embodiments, a portion of RBS data processing system 56 such as reporting unit 60 can be responsible for examining information received from user equipment unit UE 30 , filtering or otherwise exacting the location-indicative information, and preparing the location-indicative information for transmission over.
Preferably, the location-indicative information is transmitted between the user equipment unit 30 and the first radio network controller node 26 1. The communication includes both an interrogation message from default radio network controller node 26 1 to RNC selection database 40 , and a response message from RNC selection database 40 to radio network controller node 26 1. The interrogation message from default radio network controller node 26 1 includes the location-indicative information, which is utilized by RNC selection database 40 in the manner understood with reference to FIG.
In the particularly illustrated scenario of FIG. Thereafter, in the stage of operation shown in FIG. The femto radio base station is thus instructed to utilize the second radio network controller node as selected with reference to RNC selection database 40 rather than the default radio network controller node as the active radio network controller node.
In other words, in the scenario of FIG. Contact with the preferred radio network control node, e. In the case that femto radio base station 28 f-new receives from its default radio network controller the address of the selected radio network controller to which it is to be redirected, such address stored in redirected RNC address memory 96 can be utilized in conjunction with an internet protocol connection to the new radio network control which is to be used as the active radio network controller for femto radio base station 28 f-new.
In another case in which identifying information other than the address of the selected radio network control for femto radio base station 28 f-new is obtained, the femto radio base station 28 f-new may contact another IP address with the selected node identifying information, and obtain from a server or the like at the other IP address the address to use for contacting the radio network control to which femto radio base station 28 f-new is to be directed.
Upon making connection with its preferred or selected radio network control node, femto radio base station 28 f-new is able to communicate through its currently preferred radio network control node in the performance of its connection handling of the mobile stations e. Should the femto radio base station 28 f-new thereafter be relocated to another position in the radio access network 24 , steps and stages such as illustrated by FIG.
In such case the femto radio base station 28 f-new would again connect upon activation after relocation either to its default radio network control node e.
Alternatively, the moved or moving femto radio base station 28 f-new may be able to remain in contact with its previous RNC which can serve in similar manner as the default RNC and which senses that the femto radio base station 28 f-new has moved upon acquiring new location-indicative information which reflects the movement of the femto radio base station 28 f-new.
Thereafter e. In one example implementation, the location-indicative information obtained from the user equipment unit and provided to the first radio network controller node by the femto radio base station is area identity information obtained by user equipment unit UE For example, the area identity information can be one of 1 location area identity LAI obtained from the user equipment unit when the user equipment unit performs a location area update upon the user equipment unit entering a cell of the femto radio base station; and 2 routing area identity RAI obtained from the user equipment unit when the user equipment unit performs a routing area update upon the user equipment unit entering a cell of the femto radio base station.
The example events or steps of FIG. In the mode of FIG. The first default radio network controller node configures the user equipment unit 30 to enable the user equipment unit 30 to detect cells on the current frequency the current frequency being used both by the femto radio base station and a macro radio base station.
The default radio network controller RNC i. The default radio network controller RNC 26 1 cannot really be certain that there are also macro cells in the location of a specific radio base station, but the intention is to let the user equipment unit report the detected macro and femto cells on the same frequency, if any, to the current radio network controller RNC 26 1.
The user equipment unit 30 then detects cells on the frequency the femto radio base station 28 f-new is also operating on. Then, as step S- 1 B 6 , cell identification information for detected cells is provided as the location-indicative information obtained from the user equipment unit 30 in communication with the femto radio base station 28 f to the default radio network controller node.
The remaining steps of events of the FIG. Scrambling codes are normally also reused in UTRAN networks, so it is probably not possible to find out the location based on detection of one cell with a specific scrambling code as this code can be also reused in another parts of the network. In addition, a cell planning database or tool can provide a possible list of other neighboring cells that would then need to be checked with the other mechanisms e.
In view of the fact that the default radio network control of the FIG. In other respects, the default radio network control of the example embodiment and mode of FIG. Various example steps of FIG. In the example embodiment and mode of FIG. In this regard, as reflected by step or event S- 8 1 in FIG.
GSM cells, with the prospect of adding these cells in the Monitored Set. In other words, one or more of steps S- 8 1 -S- 8 4 may be repeated in an iterative basis according to cell selection logic of the default radio network controller. In this regard, for the example mode and embodiment of FIG. The measurement report should be configured so that the user equipment unit will report the cell at once, if detected.
If the user equipment unit UE does not report anything, then the default radio network controller can change the Monitored Set and add another cell, and so on until there is enough information about the location of the femto RBS.
The user equipment unit 30 can then detect cells on the corresponding different frequencies. Cell identification information for detected cells is provided as the location-indicative information obtained from the user equipment unit 30 in communication with the femto radio base station 28 f to the default radio network controller node. In the FIG. In such case in which additional information is needed, the mode of FIG. For example, the mode of FIG. Thus, steps of one or more node redirection operations may be utilized either in parallel or in sequence.
In other words, the default or first radio network controller node can direct the user equipment unit to operate in accordance with a first location strategy and, if the first location strategy supplies insufficient information for locating the femto radio base station, the first radio network controller node can direct the user equipment unit to operate in accordance with a second location strategy.
Combining modes can result in a new mode, such as the example embodiment and mode illustrated in FIG. The mode of FIG. In this regard, the mode of FIG. As such, and as further reflected by step S- 1 0 , the default radio network controller node switches modes, e.
Accordingly, step of the mode of FIG. To cater for the determination and switch, FIG. The femto radio base station handler 88 of the FIG. Thus, as one aspect of the technology, femto radio base station 28 f-new is configured to connect to a default radio network controller node of the radio access network and thereafter to provide location-indicative information obtained from the user equipment unit 30 in communication with femto radio base station 28 f-new to the default radio network controller node.
The femto radio base station 28 f-new is further configured thereafter upon receiving redirection information based on the location-indicative information to replace the default radio network controller node with a second radio network controller node as an active radio network controller node for femto radio base station 28 f-new.
As another aspect of the technology, the default network controller node is configured to use location-indicative information obtained from a user equipment unit in communication with a femto radio base station to determine which other radio network controller node the femto radio base station should use as its active radio network controller node. Thus, femto radio base station 28 f-new initially connects to a default RNC in the network.
The address or identity of this default RNC is configured in femto radio base station 28 f-new. When an user equipment unit UE contacts the femto radio base station 28 f-new , the user equipment unit UE provides some information e. Examples of the type of information and procedures could be used by an RNC to find out the correct RNC to which the femto radio base station 28 f-new should be connected are provided below. In some scenarios, this can give quite good estimate of the location of the femto radio base station 28 f-new.
However, this LAI method does not work well in the case the user equipment unit UE is switched off in a location far away from the femto radio base station 28 f-new , and is then turned on in the femto cell of femto radio base station 28 f-new.
This method could be improved by checking that the same LAI is reported more than once by the user equipment unit UE. Another improvement would be to also check the type of the Location Update. If the same frequency is used for both macro and femto cells, then the RNC can configure the user equipment unit UE for measurements to detect unknown cells in the same frequency using the measurement event 1 d.
If same frequency is not used for macro and femto cells, then the RNC can configure the user equipment unit UE for inter-frequency measurements to detect cells in other frequencies. This can be based on a trial and error mechanism so that the RNC checks if the user equipment unit UE can hear different cells. If one set of cells does not provide any measurement results from the user equipment unit UE , the RNC would need to change the cell set and try again.
Thus, as an advantage of the technology, a femto RBS such as femto radio base station 28 f-new can be moved by the end users e. The technology has particular relevance of the aforementioned and conveniently described system and scenarios, but could also be applied in other cases and for other networks. Although various embodiments have been shown and described in detail, the claims are not limited to any particular embodiment or example.
None of the above description should be read as implying that any particular element, step, range, or function is essential. The invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements. A method of operating a radio access network comprising: connecting a femto radio base station to a first radio network controller node of the radio access network;. The method of claim 1 , further comprising instructing the femto radio base station to utilize the second radio network controller node rather than the first radio network controller node as the active radio network controller node.
The method of claim 1 , wherein the first radio network controller node is a default radio network controller node, and further comprising preconfiguring the femto radio base station to connect to the first radio network controller node.
The method of claim 1 , wherein the information obtained from the user equipment unit and provided to the first radio network controller node by the femto radio base station is one of 1 location area identity LAI obtained from the user equipment unit when the user equipment unit performs a location area update upon the user equipment unit entering a cell of the femto radio base station; and 2 routing area identity RAI obtained from the user equipment unit when the user equipment unit performs a routing area update upon the user equipment unit entering a cell of the femto radio base station.
The method of claim 1 , further comprising: the first radio network controller node configuring the user equipment unit to enable the user equipment unit to detect at least one cell on a specified frequency, the specified frequency being used both by the femto radio base station and a macro radio base station;. The method of claim 1 , further comprising: the first radio network controller node configuring the user equipment unit to enable the user equipment unit to operate on different frequencies for detecting at least one cell;.
The method of claim 6 , wherein the step of configuring the user equipment unit to enable the user equipment unit to operate on different frequencies comprises a trial and error changing of a monitored set for the user equipment unit. The method of claim 1 , further comprising: the first radio network controller node directing the user equipment unit to operate in accordance with a first location strategy;.
The method of claim 8 , wherein the first strategy comprises the first radio network controller node configuring the user equipment unit to enable the user equipment unit to detect at least one cell on a specified frequency, and wherein the second strategy comprises the first radio network controller node configuring the user equipment unit to enable the user equipment unit to operate on different frequencies for detecting at least one cell.
The method of claim 9 , wherein the different frequencies comprise one or both of frequencies for inter-frequency cells and frequencies for inter-radio access technology RAT cells. A femto radio base station configured to connect to a first radio network controller node of the radio access network and thereafter to provide location-indicative information obtained from a user equipment unit in communication with the femto radio base station to the first radio network controller node, and configured thereafter upon receiving redirection information based on the location-indicative information to replace the first radio network controller node with a second radio network controller node as an active radio network controller node for the femto radio base station.
The apparatus of claim 11 , wherein the first radio network controller node is a default radio network controller node, and wherein the femto radio base station is preconfigured to connect to the first radio network controller node. The apparatus of claim 11 , wherein the location-indicative information obtained from the user equipment unit and provided to the first radio network controller node via the femto radio base station is one of 1 location area identity LAI obtained from the user equipment unit when the user equipment unit performs a location area update upon the user equipment unit entering a cell of the femto radio base station; and 2 routing area identity RAI obtained from the user equipment unit when the user equipment unit performs a routing area update upon the user equipment unit entering a cell of the femto radio base station.
The apparatus of claim 11 , wherein the location-indicative information obtained from the user equipment unit is cell identification information detected by the user equipment unit.
A radio network controller node of a radio access network, the radio network controller node being configured to use location-indicative information obtained from a user equipment unit in communication with a femto radio base station to determine which other radio network controller node the femto radio base station should use as its active radio network controller node.
The apparatus of claim 15 , wherein the radio network controller node is configured for instructing the femto radio base station to utilize the second radio network controller node as the active radio network controller node. The apparatus of claim 15 , wherein the information obtained from the user equipment unit and provided to the radio network controller node by the femto radio base station is one of 1 location area identity LAI obtained from the user equipment unit when the user equipment unit performs a location area update upon the user equipment unit entering a cell of the femto radio base station; and 2 routing area identity RAI obtained from the user equipment unit when the user equipment unit performs a routing area update upon the user equipment unit entering a cell of the femto radio base station.
The apparatus of claim 15 , wherein the first radio network controller node is further configured to instruct the user equipment unit to detect at least one cell, and wherein the location-indicative information obtained from the user equipment unit in communication with the femto radio base station comprises cell identification information for the at least one detected cell.
The apparatus of claim 15 , wherein the first radio network controller node is further configured to instruct the user equipment unit to detect at least one cell on a specified frequency, the specified frequency being used both by the femto radio base station and a macro radio base station, and wherein the location-indicative information obtained from the user equipment unit in communication with the femto radio base station comprises cell identification information for the at least one detected cell.
The apparatus of claim 15 , wherein the first radio network controller node is further configured to instruct the user equipment unit to detect at least one cell by operating on different frequencies; and wherein the location-indicative information obtained from the user equipment unit in communication with the femto radio base station comprises cell identification information for the at least one detected cell.
The apparatus of claim 20 , wherein the first radio network controller node is configured to enable the user equipment unit to operate on a trial and error approach for changing of a monitored set for the user equipment unit.
The apparatus of claim 15 , wherein the first radio network controller node is arranged for directing the user equipment unit to operate in accordance with a first location strategy and is further arranged, if the first location strategy supplies insufficient information for locating the femto radio base station, for directing the user equipment unit to operate in accordance with a second location strategy.
The apparatus of claim 22 , wherein the first strategy comprises the first radio network controller node configuring the user equipment unit to enable the user equipment unit to detect at least one cell on a specified frequency, and wherein the second strategy comprises the first radio network controller node configuring the user equipment unit to enable the user equipment unit to operate on different frequencies for detecting at least one cell.
The apparatus of claim 23 , wherein the different frequencies comprise one or both of frequencies for inter-frequency cells and frequencies for inter-radio access technology RAT cells. USP true USB2 en. EPA1 en. JPA en. CNB en. EST3 en. WOA1 en. Wireless communication method and system for configuring radio access bearers for enhanced uplink services.
Wireless communication system and method for configuring cells with enhanced uplink services. Method and system for preloading suggested content onto digital video recorder based on social recommendations. Device for facilitating overlay network operation in an underlay network environment. A method and apparatuses for allocating service area identifiers in a wireless system. Method, user equipment, network element, software product and system for user equipment handling in redirection.
Apparatus and method for interworking mobile communication network with digital subscriber line network. System and method to locate femto cells with passive assistance from a macro cellular wireless network.
Wireless communications system, wireless terminal device, indoor base station apparatus, and control apparatus for obtaining location information. KRB1 en. Method for setting base station information of femtocell base station and applied to femtocell base station. Femto cell base station, mobile communication system, method for controlling femto cell base station, femto cell base station control program, and mobile communication terminal.
Location-based handovers from a macrocell to a femtocell using event-triggered measurement reporting. Method for user equipment performing direct communications via hnb access systems. USB1 en. System and method for determining whether to allow a base station to perform a particular base station function. Methods and apparatus for facilitating handoff between a femtocell base station and a cellular base station. Identifying a base station from a set of handover candidate base stations that use the same primary scrambling code.
System and method for managing femto base stations and a femto zone in a wireless communication network. Mobile communication terminal, mobile communication system, and mobile communication method. Apparatus and method for performing cell selection to home cell or private network in a mobile communication system.
Sampath Weerakkodi. Anand Srivastava. Mahendra Dixit. Khadijah Ahmad. Dedi Sunardi. Priscilla Madridano. Wall Omar. William Proveaux.
Hum TumJaan. Cindy Lau. Alexander Ice. Miquel Kustner. Dalibor Stojanovic. Nicolas Avila R. Roshdy AbdelRassoul. Navigasi cepat Beranda. If the activation time is not utilized in this embodiment, then in step 94 the UE stops listening to the source Node B. In accordance with this embodiment of the present invention, implementing flow control at step 88 increases the chances that all of the data will be more timely received by the Node B. It should be understood by those of skill in the art that any of the techniques employed in the four embodiments shown in FIGS.
This embodiment: 1 utilizes the activation time as one of the criteria in scheduling of the data to the UE; 2 applies a more robust MCS level to the data; and either 3 suspends data transmissions from the RNC to the Node B after recognizing the need for a serving HS-DSCH cell change; or 4 employs flow control to the data that is in the pipeline between the RNC and the Node B.
It should be noted that suspending data transmissions and performing flow control are mutually exclusive. If data transmissions are suspended, flow control cannot be pursued. Likewise, if flow control is desired, suspension of data transmissions cannot be performed. Accordingly, these steps will be referred to as optional in reference to FIG. The reconfiguration message may include the activation time. Steps and may be performed in any order, but suspending data transmissions step is preferably first, since data buffered in the source B Node is minimized.
Optionally, flow control is then exhibited on the data buffered at the RNC such that all of the data buffered at the RNC is sent to the Node B as quickly as possible step The Node B schedules data to the UEs based upon the activation time, priority and latency of the data step As aforementioned with respect to the embodiment shown in FIG.
However, if the activation time is not sent as part of the reconfiguration message and is not utilized to schedule the data, once the Node B receives the reconfiguration message, it begins to schedule the data to the UEs such that more resources are allocated to the UE undergoing the serving HS-DSCH cell change in order to get data to that UE as quickly as possible.
Once the data is scheduled at step , the Node B applies a more robust MCS level step , based upon not only UE feedback, but also the activation time. However, if the activation time is not sent as part of the reconfiguration message and is not utilized to apply the MCS level, once the Node B receives the reconfiguration message, it applies a more robust MCS level to the data destined to the UE undergoing the HS-DSCH cell change such that more resources are allocated to that UE data is sent to that UE as quickly as possible.
If the activation time is not utilized in this embodiment, then in step the UE stops listening to the source Node B. A Node B configured to receive and buffer comprising: a receiver configured to receive a notification of a high-speed downlink shared channel HS-DSCH cell change for a user equipment UE ;.
The Node B of claim 1 wherein the notification includes an activation time, which indicates when the UE will cease communicating within the cell. The method of claim 2 wherein the transmitter is configured to transmit the modulated data to the UE prior to the activation time. The method of claim 5 wherein the receiving a notification is such that the notification includes an activation time, which indicates when the UE will cease communicating within the cell.
The method of claim 6 wherein the scheduling data at the Node B is such that the data for transmission to the UE is sent to the UE prior to the activation time.
The method of claim 5 further comprising performing flow control, such that data for transmission to the UE is sent at a higher rate from the RNC to the at least one Node B.
A method for efficient delivery of buffered data comprising: determining at a radio network controller RNC a need for a high-speed downlink shared channel HS DSCH cell change for a user equipment UE communicating with a Node B within a cell;.
USP true USB2 en. EPA1 en. JPB2 en. KRA en. CNY en. ARA1 en. ATT en.
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