TWI678935B - Enhanced index based system information distribution - Google Patents

Abstract

A method in a wireless device (110) includes receiving (404) one or more transmissions (125a, 125b) from a network node (115), the one or more transmissions including a first sequence and a first sequence A sequence is associated with one of the broadcast channels. The method includes determining (408) a first index element based on the first sequence, and determining (412) a second index element based on information on the broadcast channel. The method includes obtaining (416) an index value based on the first index element and the second index element. The method includes determining (420) system information using the acquired index value.

Description

Enhanced index-based system information distribution

The present invention relates generally to wireless communications and more specifically to enhanced index-based system information distribution.

For 5G-New Radio (NR), consider an index-based system information distribution concept. The 5G-NR proposal consists of a two-step mechanism for transmitting and accessing information. It consists of a system information block table (SIB table), which is a set containing a system information block configuration (SIB), and provides a SIB table for selecting One of the configurations to define one of the system information index (SSI) and one synchronization signal (SS). The SSI may also be accompanied by a data container represented as a physical broadcast channel (PBCH) as needed. The PBCH contains a master information block (MIB), which allows the transfer of more information than can be encoded in the SSI. It is assumed that the content of the SIB table is known to the user equipment (UE) when performing a random access attempt. Generally, the UE has a stored copy of one of the previously retrieved SIB tables, so that it only needs to receive the SS and determine its index (ie, SSI) to know which configuration it should use when accessing the network. Figure 1 illustrates an example of proposed system information retrieval for 5G-NR. In the example of FIG. 1, two network nodes 115a and 115b and a wireless device 110 (eg, a UE) are shown. Each network node 115 (for example, one of an evolved Node B (eNB), a gNB, a transmission receiving point (TRP), or a radio base station (RBS)) transmits an SS or a system signature signal. Transmitting network node 115a SS _1, the network node 115b transmission SS2. Together with their respective SSs, each network node 115 also transmits a physical broadcast channel (PBCH), which contains some of the minimum system information required for the wireless device 110 to access the network. This part of the minimum system information is shown as MIB in the example of FIG. Therefore, in the example of FIG. 1, the network node 115a transmits SS ₁ along with MIB ₁ and the network node 115b transmits SS ₂ along with MIB ₂ as indicated by “SS ₁ + MIB ₁ transmission” in FIG. 1 and Elliptical indication of "SS ₂ + MIB ₂ transmission". By reading the MIB, the wireless device 110 receives information on how to receive the SIB table. The SIB table may be transmitted using a broadcast format, such as a single frequency network (SFN) transmission, as depicted by the ellipse transmitted by the labeled SIB table in the example of FIG. 1. In addition to the minimum system information that is broadcast periodically in the SS + MIB and in the SIB table, the UE 110 can also receive other system information (e.g., through a dedicated transmission) after establishing initial access, such as by The ellipse is labeled as "extra SI transmission" in the example of 1. In existing methods, the system signature index (SSI) can be communicated to the wireless device in different ways. In some cases, the SSI is an index of the SS or the SSI is explicitly signaled in the MIB. However, there are certain disadvantages associated with indexing the SSI as an SS. For example, it may be desirable to change the system information of a cell. According to existing methods, this will require changing the SS that the cell is using. This can cause the wireless device to lose synchronization and it will take some time before the wireless device finds the cell again. This can be avoided by informing the wireless device of this situation in advance. However, this method is costly in terms of additional configuration messaging, additional implementation complexity of the wireless device, and additional delay. As another example, if a cell needs to have more than one system information variant (for example, to implement different PRACH timing windows in different beams), then it needs to have more than one SS in the cell. An alternative approach is to place the SSI in the MIB, which is transmitted in a physical broadcast channel, denoted PBCH, associated with the SS transmission. However, this method also has disadvantages. That is, the SSI needs to be at least 10 bits in order to facilitate a sufficient number of system information variants in the network. For example, transmitting in the order of 10 bits in several beams would be expensive. Therefore, an improved index-based system information distribution is needed.

In order to solve the above problems using existing solutions, a method in a wireless device is disclosed. The method includes receiving one or more transmissions from a network node, the one or more transmissions including a first sequence and a broadcast channel associated with the first sequence. The method includes determining a first index element based on a first sequence. The method includes determining a second index element based on information on a broadcast channel. The method includes obtaining an index value based on a first index element and a second index element. The method includes using the acquired index value to determine system information. In some embodiments, the method may include using the determined system information to access a network associated with a network node. In some embodiments, obtaining an index value may include deriving an index value, wherein the derived index value is a function of one of the first index element and the second index element. The function of the first index element and the second index element may be concatenation of the first index element and one of the second index element. In some embodiments, the first sequence may be included in a synchronization signal. In some embodiments, the first index element may include a plurality of bits, and determining that the first index element may include reading a first sequence included in the synchronization signal. In some embodiments, the broadcast channel may be associated with the first sequence due to one or more of the following: the synchronization signal implicitly defines the time and frequency resources used for the demodulation of the broadcast channel; and The signal serves as one of the broadcast channels to demodulate the reference signal. In some embodiments, the broadcast channel may be associated with the first sequence due to one or more of: using a first index element to derive a demodulation reference signal for the broadcast channel; and using the first sequence to derive Channel configuration for one of the broadcast channels. In some embodiments, the broadcast channel may include a physical broadcast channel, and the second index element may include a plurality of explicit bits included in a main information block on the physical broadcast channel. In some embodiments, the method may include decoding the broadcast channel using the determined first index element. In some embodiments, the system information may include system information of a cell associated with a network node. In some embodiments, the system information may include system information of one of a plurality of beams associated with a network node. In some embodiments, the system information may include information about a target cell to which the wireless device is to be handed over. According to another exemplary embodiment, a wireless device is disclosed. The wireless device includes a receiver and a processing circuit coupled to the receiver. The processing circuit is configured to receive one or more transmissions from a network node via a receiver, the one or more transmissions including a first sequence and a broadcast channel associated with the first sequence. The processing circuit is configured to determine a first index element based on the first sequence. The processing circuit is configured to determine a second index element based on the information on the broadcast channel. The processing circuit is configured to obtain an index value based on the first index element and the second index element. The processing circuit is configured to use the acquired index value to determine system information. According to another exemplary embodiment, a method in a network node is disclosed. The method includes defining system information for one or more aspects of wireless communication between a network node and a wireless device. The method includes transmitting a first sequence to a wireless device, the first sequence enabling the wireless device to determine a first index element based on the first sequence. The method includes transmitting a broadcast channel associated with the first sequence to a wireless device, the broadcast channel enabling the wireless device to determine a second index element based on information on the broadcast channel, wherein the first index element and the second index element Enables the wireless device to obtain an index value indicating the defined system information. In some embodiments, the index value may be a function of one of the first index element and the second index element. In some embodiments, the function of the first index element and the second index element is a series of one of the first index element and the second index element. In some embodiments, transmitting the first sequence may include transmitting a synchronization signal including one of the first sequence. In some embodiments, the first index element may include a plurality of bits that can be determined by reading a first sequence included in the synchronization signal. In some embodiments, the broadcast channel may be associated with the first sequence due to one or more of the following: the synchronization signal implicitly defines the time and frequency resources used for the demodulation of the broadcast channel; and the use of synchronization The signal serves as one of the broadcast channels to demodulate the reference signal. In some embodiments, the broadcast channel may be associated with the first sequence due to one or more of: using a first index element to derive a demodulation reference signal for the broadcast channel; and using the first sequence to derive Channel configuration for one of the broadcast channels. In some embodiments, the broadcast channel may include a physical broadcast channel, and the second index element includes a plurality of explicit bits included in a main information block on the physical broadcast channel. In some embodiments, the system information may include system information of a cell associated with a network node. In some embodiments, the system information may include system information of one of a plurality of beams associated with a network node. In some embodiments, the system information may include information about a target cell to which the wireless device is to be delivered. According to another exemplary embodiment, a network node is disclosed. The network node includes a transmitter and a processing circuit coupled to the transmitter. The processing circuit is configured to define system information for one or more aspects of wireless communication between a network node and a wireless device. The processing circuit is configured to transmit a first sequence to a wireless device via a transmitter, the first sequence enabling the wireless device to determine a first index element based on the first sequence. The processing circuit is configured to transmit a broadcast channel associated with the first sequence to a wireless device via a transmitter, the broadcast channel enabling the wireless device to determine a second index element based on information on the broadcast channel, wherein the first index element is The index element and the second index element enable the wireless device to obtain an index value indicating one of the defined system information. Certain embodiments of the invention may provide one or more technical advantages. For example, certain embodiments may advantageously implement changes in system information without causing the wireless device to lose synchronization or increase the amount of time required for a wireless device to determine system information. As another example, certain embodiments may advantageously avoid the increased costs associated with using additional configuration messaging, increased implementation complexity, and additional delays in the UE. As yet another example, certain embodiments may advantageously avoid resource expenditures associated with messaging a large number of bits. As yet another example, certain embodiments may advantageously enable rapid system information changes without changing the system synchronization signal and without signaling a large number of bits in the MIB. Those skilled in the art will readily understand other advantages. Certain embodiments may not have the described advantages, have some or all of the described advantages.

As described above, there are disadvantages associated with existing methods of communicating an index of system information. Using SSI as the index of the SS (or explicitly signaling the SSI in the MIB) may make it difficult to change the system information of a cell, resulting in loss of synchronization of the wireless device and increased time before the wireless device finds the cell again. Informing the wireless device system in advance of information changes is costly in terms of additional configuration messaging, additional implementation complexity, and additional delays in the wireless device. Similarly, placing the SSI in the MIB (which is transmitted in the physical broadcast channel denoted PBCH associated with the SS transmission) requires that the SSI be at least 10 bits, but facilitates a sufficient number of system information variants in the network The expenses required are large. The present invention contemplates various embodiments that address these and other disadvantages associated with existing methods. In some cases, this is achieved using an improved method for index-based system information distribution. According to an exemplary embodiment, a network node (for example, a gNB or an eNB) defines system information for one or more aspects of wireless communication between the network node and a wireless device (for example, a UE). . The network node transmits a first sequence to the wireless device, and the first sequence enables the wireless device to determine a first index element based on the first sequence. The network node transmits a broadcast channel associated with the first sequence to the wireless device, and the broadcast channel enables the wireless device to determine a second index element based on the information on the broadcast channel, wherein the first index element and the second index element Enables the wireless device to obtain an index value indicating the defined system information. According to another exemplary embodiment, a wireless device (eg, a UE) receives one or more transmissions from a network node, the one or more transmissions include a first sequence and one associated with the first sequence Broadcast channel. The wireless device determines a first index element based on the first sequence. The wireless device determines a second index element based on the information on the broadcast channel. The wireless device obtains an index value based on the first index element and the second index element. The wireless device uses the acquired index value to determine system information. In some embodiments, the wireless device uses the determined system information to access a network associated with a network node. Certain embodiments of the invention may provide one or more technical advantages. For example, certain embodiments may advantageously implement changes in system information without causing the wireless device to lose synchronization or increase the amount of time required for a wireless device to determine system information. As another example, certain embodiments may advantageously avoid the increased costs associated with using additional configuration messaging, increased implementation complexity, and additional delays in the UE. As yet another example, certain embodiments may advantageously avoid resource expenditures associated with messaging a large number of bits. As yet another example, certain embodiments may advantageously enable rapid system information changes without changing the system synchronization signal and without signaling a large number of bits in the MIB. Those skilled in the art will readily understand other advantages. Certain embodiments may not have the described advantages, have some or all of the described advantages. FIG. 2 illustrates an example of how a wireless device retrieves minimal system information that enables it to perform a physical random access channel (PRACH) transmission and receive a random access response (RAR). More specifically, FIG. 2 illustrates how exemplary signals and wireless devices use these signals over time (depicted on the X-axis) to capture the random access procedures required (starting with SS and ending with RAR reception). Configuration data. The first step of a wireless device (eg, a UE) targeted at performing initial access is to search for and detect SS 205 on a suitable carrier frequency. When the SS 205 is detected, the wireless device is synchronized with the network and can derive from the SS 205 how to receive the MIB 210. MIB 210 can be broadcast on resources with a fixed relationship with SS 205 and a sequence scrambling code can be derived from SS 205. Note that in the NR, the MIB 210 will be transmitted on a physical broadcast channel (NR-PBCH) which has not been fully defined by the 3rd Generation Partnership Project (3GPP). This channel is somewhat similar to the corresponding PBCH used for Long Term Evolution (LTE). However, the content of the MIB in NR is different from the content of MIB in LTE, but the same terminology will be used herein to indicate that a piece of information is transmitted in a physical channel associated with the system synchronization signal. MIB 210 contains information that assists the wireless device in verifying any previously stored SIB parameters. As an example, the information contained in MIB 210 may assist the wireless device in verifying a value tag of any previously stored SIB parameter. Although the example of FIG. 2 illustrates the information as a value label, the information may take other forms. For example, the information can be in the form of a version number or a hash. MIB 210 also contains configuration information that instructs wireless devices how to receive broadcast SIB 215. SIB transmission configuration data may include, for example, time and frequency resources, demodulation reference signal (DMRS), scrambling code, and other suitable information. As an additional example, in some cases, the SIB transmission configuration data may include an index / sequence of one of the SSs combined with the SIB 215 transmission. If the SIB information (or part of the SIB information) is structured in the form of a table where only one entry or a group of entries in the table will be applied (while the information in the other entries in the table can be applied to other cells), then The wireless device may also derive a table index from the SS 205 / MIB 210, which indicates the applicable entries (or groups of entries). The broadcast SIB 215 provides at least minimal configuration information (minimum system information) to allow the wireless device to perform initial access. Therefore, when the wireless device receives the SIB, it receives the configuration data of the PRACH 220. The configuration data of PRACH 220 may include, for example, time and frequency resources. In addition, the information in SIB 215 contains configuration data that enables wireless devices to receive RAR 225. This configuration data configuration is directed to one of the physical channels of RAR 225, where the main component is an SS to be transmitted in conjunction with RAR 225, thereby allowing wireless devices to detect and decode RAR 225. A dedicated SS will facilitate transmission of RAR 225 from another (inoperative) antenna port other than SS 205. Dedicated synchronization signals will also be useful for deployment in unlicensed frequency bands, where the transmission of RAR 225 can be delayed and the timing is unknown to the wireless device. In addition, if high-gain beamforming is used for RAR 225, a dedicated SS will help wireless devices tune automatic gain control (AGC). After receiving the SIB 215 and retrieving the included configuration data, the wireless device can initiate the initial access procedure by transmitting a random access preamble over the PRACH 220 and receiving subsequent RAR 225 according to the configuration data in the SIB. . FIG. 3 is a block diagram illustrating one embodiment of a network 300 according to some embodiments. The network 300 includes one or more wireless devices 110 and one or more network nodes 115 (network nodes 115a and 115b are included in the exemplary embodiment of FIG. 3). The wireless device 110 includes a processor 820, a memory 830, an interface 810, and an antenna 840. The network node 115a includes a processor 920, a memory 930, an interface 910/940, and an antenna 950. These components may work together to provide network node and / or wireless device functionality, such as providing wireless connectivity in the network 300. For example, the wireless device 110 can communicate with the network node 115 via a wireless interface. For example, the wireless device 110 may transmit the wireless signals 125a, 125b to one or more of the network nodes 115, and / or receive the wireless signals 125a, 125b from one or more of the network nodes 115. The wireless signals 125a, 125b may contain voice traffic, data traffic, control signals, and / or any other suitable information. In some embodiments, an area covered by the wireless signal associated with a network node 115 may be referred to as a cell. In some embodiments, the wireless device 110 may have inter-device (D2D) capability. Therefore, the wireless device 110 may be able to receive signals from another wireless device and / or transmit signals directly to another wireless device. In some embodiments, the network node 115 may interface with a radio network controller. The radio network controller may control the network node 115 and may provide certain radio resource management functions, mobility management functions, and / or other suitable functions. In some embodiments, the functions of the radio network controller may be included in the network node 115. The radio network controller can interface with a core network node. In some embodiments, the radio network controller may interface with the core network node via an internet 320. The internet 320 may refer to any internet system capable of transmitting audio, video, signals, data, messages, or any combination of the foregoing. Internet 320 may include one or more Internet Protocol (IP) networks, public switched telephone networks (PSTN), packet data networks, optical networks, public or private data networks, and local area networks (LANs) , Wireless local area network (WLAN), wired network, wireless network, metropolitan area network (MAN), wide area network (WAN), a regional, regional or global communication or computer network (such as the Internet), All or part of an intranet or any other suitable communication link containing a combination thereof to enable communication between devices. In some embodiments, the core network node may manage the establishment of communication sessions and various other functionalities of the wireless device 110. The wireless device 110 may use a non-access hierarchy layer to exchange certain signals with core network nodes. In non-access level messaging, signals between the wireless device 110 and the core network node can pass through the RAN transparently. In some embodiments, the network node 115 may interface with one or more network nodes via an inter-node interface, such as, for example, an X2 interface. As described above, an exemplary embodiment of the network 300 may include one or more wireless devices 110 and one or more different types of network nodes 115 capable of communicating (directly or indirectly) with the wireless devices 110. In some embodiments, the non-limiting term wireless device is used. The wireless device 110 described herein may be any type of wireless device capable of, configured, configured, and / or operable to wirelessly communicate with the network node 115 and / or another wireless device. Wirelessly communicating may involve transmitting and / or receiving wireless signals using electromagnetic signals, radio waves, infrared signals, and / or other types of signals suitable for transmitting information through the air. In a particular embodiment, the wireless device may be configured to transmit and / or receive information without direct human interaction. For example, a wireless device may be designed to transmit information to the network on a predetermined schedule when triggered by an internal or external event or in response to a request from a network. Generally, a wireless device may mean any device capable of, configured for, configured for, and / or operable for wireless communication, such as a radio communication device. Examples of wireless devices include, but are not limited to, UEs, such as smart phones. Further examples include wireless cameras, wireless enabled tablets, laptop embedded devices (LEE), laptop installation devices (LME), USB dongle, and / or wireless client devices (customer-premises equipment (CPE)). The wireless device 110 may also be a radio communication device, a target device, a D2D UE, a machine type communication (MTC) UE or a UE capable of inter-machine (M2M) communication, a low cost and / or low complexity UE, a UE equipped with a UE A sensor or any other suitable device. As one specific example, the wireless device 110 may represent one UE configured to communicate according to one or more communication standards issued by 3GPP, such as the GSM, UMTS, LTE, and / or 5G standards of 3GPP. As used herein, a "UE" may not necessarily have a "user" in the sense of a human user who owns and / or operates the associated device. Alternatively, a UE may indicate a device that is intended to be sold to or operated by a human user but may not initially be associated with a particular human user. The wireless device 110 may support D2D communication by, for example, implementing a 3GPP standard for secondary link communication, and may be referred to as a D2D communication device in this case. As yet another specific example, in a case of the Internet of Things (IOT), a wireless device may perform monitoring and / or measurement, and transmit the results of such monitoring and / or measurement to another wireless device and / Or a machine or other device at a network node. The wireless device in this case may be an M2M device, which may be referred to as an MTC device in a 3GPP context. As a specific example, the wireless device may be a UE that implements the 3GPP Narrowband Internet of Things (NB-IoT) standard. Specific examples of such machines or devices are sensors, metering devices (such as power meters), industrial machinery or household or personal appliances (for example, refrigerators, televisions, personal wearables (such as watches), etc.). In other cases, a wireless device may represent a tool or other device capable of monitoring and / or reporting its operational status or other functions associated with its operation. The wireless device 110 as described above may represent an endpoint of a wireless connection, in which case the device may be referred to as a wireless terminal. In addition, as described above, a wireless device may be mobile, in which case it may also be referred to as a mobile device or a mobile terminal. As depicted in FIG. 3, the wireless device 110 may be any type of wireless endpoint, mobile station, mobile phone, wireless local line phone, smart phone, user equipment, desktop computer, PDA, mobile phone, tablet computer, laptop A laptop, VoIP phone or mobile phone capable of wirelessly transmitting and receiving data and / or signals to and from a network node (such as network node 115) and / or other wireless devices . The wireless device 110 includes a processor 820, a memory 830, an interface 810, and an antenna 840. The components of the wireless device 110 are depicted as a single block positioned within a single larger block. However, in practice, a wireless device may include multiple different physical components that make up a single illustrated component (for example, the memory 830 may include multiple Discrete microchips, each microchip representing a portion of the total storage capacity). The processor 820 may be a microprocessor, controller, microcontroller, central processing unit, digital signal processor, application specific integrated circuit, field programmable gate array, or any other suitable computing device, resource, or It operates to provide one or more of a combination of hardware, software, and / or coded logic of the wireless device 110 functionality, alone or in combination with other wireless device 110 components, such as memory 830. This functionality may include providing various wireless features discussed herein, including any of the features or benefits disclosed herein. Memory 830 can be any form of volatile or non-volatile memory, including (unrestricted) permanent storage, solid-state memory, remote-mounted memory, magnetic media, optical media, random access memory (RAM) , Read-only memory (ROM), removable media, or any other suitable local or remote memory component. The memory 830 may store any suitable data, instructions or information utilized by the wireless device 110, including software and encoding logic. The memory 830 may be used to store any calculations performed by the processor 820 and / or any data received via the interface 810. The interface 810 may be used for wireless communication of communication and / or data between the wireless device 110 and the network node 115. For example, the interface 810 may perform any formatting, encoding, or translation that may be required to allow the wireless device 110 to send and receive data from the network node 115 via a wireless connection. The interface 810 may also include a radio transmitter and / or receiver that may be coupled to the antenna 840 or a part of the antenna 840. The radio can receive digital data to be sent to the network node 115 via a wireless connection. The radio can convert digital data into a radio signal with the appropriate channel and bandwidth parameters. The radio signal can then be transmitted to the network node 115 via the antenna 840. The antenna 840 may be any type of antenna capable of wirelessly transmitting and receiving data and / or signals. In some embodiments, the antenna 840 may include one or more omnidirectional, sector or flat antennas operable to transmit / receive radio signals between, for example, 2 GHz and 66 GHz. In some embodiments, the antenna 840 may be capable of transmitting / receiving signals outside this range. As an example, one of the antennas 840 operating in a 5G system may support lower frequency (e.g., as low as 700 MHz) transmission / reception. For simplicity, the antenna 840 may be considered as part of the interface 810 to the extent that a wireless signal is being used. Furthermore, in some embodiments, the general term "network node" is used. As used herein, "network node" means capable, configured, configured, and / or operable to communicate with a wireless device and / or with a wireless communication network and / or provide wireless access to a wireless device Access to other devices Devices that communicate directly or indirectly. Examples of network nodes include, but are not limited to, access points (AP), specifically radio access points. A network node may represent a base station (BS), such as a radio base station. Specific examples of radio base stations include Node B, Evolved Node B (eNB), and gNB. Base stations can be classified based on the amount of coverage they provide (or, in other words, their transmission power levels) and then can also be referred to as ultra-micro base stations, micro base stations, small base stations, or giant base stations. A "network node" also contains one or more (or all) parts of a distributed radio base station, such as a centralized digital unit and / or a remote radio unit (RRU), sometimes called a remote radio front end (RRH ). These remote radio units may or may not be integrated with an antenna as an antenna integrated radio. A portion of a distributed radio base station may also be referred to as a node in a distributed antenna system (DAS). As a specific non-limiting example, a base station may be a relay node or a relay donor node controlling a relay. Further examples of network nodes include multi-standard radio (MSR) radios (such as MSR BS), network controllers (such as radio network controller (RNC) or base station controller (BSC)), base transceiver stations ( BTS), transmission point, transmission node, multi-cell / multicast coordination entity (MCE), core network node (e.g., MSC, MME, etc.), operation and maintenance (O & M) node, operation support system (OSS) node, self-service Organizational network (SON) nodes, positioning nodes (e.g., Evolved Servo Mobile Location Center (E-SMLC)), test-driven minimization (MDT), or any other suitable network node. However, more generally, a network node may mean capable, configured, configured, and / or operable to implement and / or provide access to a wireless device of a wireless communication network or provide some services to an accessed wireless device. Any suitable device (or group of devices) of a wireless device in a communication network. In FIG. 3, the network node 115a includes a processor 920, a memory 930, an interface 910/940, and an antenna 950. These components are depicted as a single block positioned within a single larger block. However, in practice, the network node 115a may include a plurality of different physical components constituting a single illustrated component (for example, the interface 910/940 may include a coupling line for a wired connection and a radio transceiver for a wireless connection Terminal). As another example, the network node 115a may be a virtual network node in which multiple separate entities of different components interact to provide the functionality of the network node 115a (e.g., the processor 920 may include three separate housings Of the three separate processors, each of which is responsible for a different function of a particular instance of network node 115a). Similarly, the network node 115a may be composed of multiple entity separate components (for example, a node B component and an RNC component, a BTS component and a BSC component, etc.), and these components may each have its own respective processor, Storage and interface components. In some cases where the network node 115a includes multiple separate components (e.g., BTS and BSC components), one or more of the separate components may be shared among several network nodes. For example, a single RNC can control multiple Node Bs. In this case, each unique node B and BSC pair can be a separate network node. In some embodiments, the network node 115a may be configured to support multiple radio access technologies (RATs). In such embodiments, some components may be duplicated (e.g., separate memory 930 for different RATs) and some components may be reused (e.g., the same antenna 950 may be shared by the RATs). The processor 920 may be a microprocessor, controller, microcontroller, central processing unit, digital signal processor, application specific integrated circuit, field programmable gate array, or any other suitable computing device, resource, or It operates to provide one or more of a combination of hardware, software, and / or coding logic of the network node 115a functionality, alone or in combination with other network node 115a components, such as the memory 930. For example, the processor 920 may execute instructions stored in the memory 930. This functionality may include providing various wireless features discussed herein to one or more wireless devices (such as wireless device 110), including any of the features or benefits disclosed herein. Memory 930 may include any form of volatile or non-volatile computer-readable memory, including (unlimited) permanent storage, solid-state memory, remote-mounted memory, magnetic media, optical media, RAM, ROM, Remove the media, or any other suitable local or remote memory component. The memory 930 may store any suitable instructions, data or information utilized by the network node 115a, including software and encoding logic. The memory 930 may be used to store any calculations performed by the processor 920 and / or any data received via the interfaces 910/940. The network node 115a also includes an interface 910/940. The interface 910/940 can be used in wired or wireless communication for communication and / or data between the network node 115a, the network 115b, and / or the wireless device 110. For example, the interfaces 910/940 may perform any formatting, encoding, or translation that may be required to allow the network node 115a to send and receive data from the network 115b via a wired connection. The interfaces 910/940 may also include a radio transmitter and / or receiver that may be coupled to the antenna 950 or a part of the antenna 950. The radio can receive digital data to be sent to other network nodes or wireless devices via a wireless connection. The radio can convert digital data into a radio signal with the appropriate channel and bandwidth parameters. The radio signal may then be transmitted to an appropriate receiver (eg, the wireless device 110) via the antenna 950. The antenna 950 may be any type of antenna capable of transmitting and receiving data and / or signals wirelessly. In some embodiments, the antenna 950 may include one or more omnidirectional, sector, or flat antennas operable to transmit / receive radio signals between, for example, 2 GHz and 66 GHz. In some embodiments, the antenna 950 may be capable of transmitting / receiving signals outside this range. As an example, one of the antennas 950 operating in a 5G system may support lower frequency (eg, as low as 700 MHz) transmission / reception. An omnidirectional antenna can be used to transmit / receive radio signals in any direction, a sector antenna can be used to transmit / receive radio signals from devices in a specific area, and a flat panel antenna can be used to transmit in a relatively straight line One of the line of sight antennas for receiving / receiving radio signals. As used herein, the term "radio node" is generally used to refer to both wireless devices and network nodes, as described separately above. Terms such as network nodes and wireless devices should be considered non-limiting and specifically do not imply a hierarchical relationship between the two; in general, "network nodes" can be considered as devices 1 and " A "wireless device" can be considered as device 2, and the two devices communicate with each other via a certain radio channel. Exemplary embodiments of wireless device 110, network node 115, and other network nodes, such as a radio network controller or a core network node, are described in more detail below with respect to FIGS. 7-12. Although FIG. 3 illustrates one particular configuration of the network 300, the present invention contemplates that the various embodiments described herein may be applied to a variety of networks having any suitable configuration. For example, the network 300 may include any suitable number of wireless devices 110 and network nodes 115, and is adapted to support communication between wireless devices or between a wireless device and another communication device, such as a landline telephone. Any additional components. In various embodiments, the wireless network 300 may include any number of wired or wireless networks, network nodes, base stations, controllers, wireless devices, relay stations, and / or may facilitate or participate in data and / or signals via wired Or any other component of a wirelessly connected communication. In addition, although certain embodiments may be described as being implemented in an NR network, the embodiments may be implemented in any suitable type of telecommunications system using any suitable component and applicable to any RAT or multi-RAT system, one of which The device receives and / or transmits signals (eg, data). For example, the various embodiments described herein may be applicable to LTE, advanced LTE, 5G, UMTS, HSPA, GSM, cdma2000, WCDMA, WiMax, UMB, WiFi, another suitable RAT, or any suitable one or more RATs combination. Thus, the network 300 may represent any type of communication, telecommunications, data, cellular and / or radio network, or other type of system. In a particular embodiment, the network 300 may be configured to operate according to certain standards or other types of predefined rules or procedures. Therefore, specific embodiments of the wireless communication network may implement communication standards such as Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), and / or other suitable 2G, 3G, 4G, or 5G standards ; Wireless Local Area Network (WLAN) standards, such as IEEE 802. 11 standards; and / or any other appropriate wireless communication standard, such as microwave access global interoperability (WiMax), Bluetooth, and / or ZigBee standards. Although certain embodiments may be described in the context of wireless transmission in the downlink (DL), the present invention contemplates that various embodiments are equally applicable in the uplink (UL). Although any suitable component may be used in any suitable type of system to implement the solution described herein, the described solution may be implemented in a wireless network, such as the exemplary wireless communication network illustrated in FIG. 3 Specific embodiment. In the exemplary embodiment of FIG. 3, the wireless communication network provides communication and other types of services to one or more wireless devices. In the illustrated embodiment, the wireless communication network includes one or more instances of network nodes that facilitate wireless device access to and / or use of services provided through the wireless communication network. A wireless communication network may further include any additional elements adapted to support communication between wireless devices or between a wireless device and another communication device, such as a landline telephone. Some embodiments contemplated herein will now be described more fully hereinafter with reference to the accompanying drawings. However, other embodiments are within the scope of the present invention and the present invention should not be construed as being limited to the embodiments set forth herein; in fact, these embodiments are provided by way of example to convey the scope of the inventive concept to those familiar with this Project technicians. Throughout the description, the same element symbols refer to the same elements. It should be noted that where appropriate, any feature of any embodiment disclosed herein may be applied to any other embodiment. Likewise, any advantage of any embodiment can be applied to other embodiments and vice versa. Other objects, features, and advantages of the attached embodiments will be apparent from the following description. Generally, all terms used herein should be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "one (a) / one (an) / the element, device, component, component, step, etc." shall be interpreted openly to refer to at least one instance of the element, device, component, component, step, etc. Unless otherwise specified. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated. As described above, the present invention contemplates various embodiments that can address the shortcomings associated with existing methods of communicating an index of system information. In some embodiments, a network node (such as network node 115a) defines system information for one or more aspects of wireless communication between network node 115a and wireless device 110. The network node 115a transmits a first sequence to the wireless device 110. The first sequence enables the wireless device 110 to determine a first index element based on the first sequence. In some embodiments, the first sequence may be included in an SS. In some embodiments, the network node 115a may transmit the first sequence by transmitting the SS including the first sequence. The network node 115a also transmits a broadcast channel associated with the first sequence to the wireless device 110. The broadcast channel can be associated with the first sequence in a variety of ways. As an example, due to the SS implicitly defining the time and frequency resources used for the demodulation of the broadcast channel, the broadcast channel may be associated with the first sequence. As another example, in some embodiments, the broadcast channel may be associated with the first sequence due to the DM serving as one of the broadcast channels. As yet another example, due to the use of the first index element to derive the DMRS of the broadcast channel, the broadcast channel may be associated with the first sequence. As yet another example, in some embodiments, a broadcast channel may be associated with the first sequence due to the use of the first sequence to derive a channel configuration of one of the broadcast channels. The broadcast channel enables the wireless device 110 to determine a second index element based on the information on the broadcast channel. The first index element and the second index element enable the wireless device 110 to obtain an index value indicating one of the defined system information. For example, the wireless device 110 receives a transmission from a network node 115a (ie, a first sequence and a broadcast channel associated with the first sequence). The wireless device 110 determines a first index element based on the first sequence, and determines a second index element based on the information on the broadcast channel. As mentioned above, in some embodiments, the first sequence may be included in an SS. In some embodiments, the first index element may include a plurality of bits, and the wireless device 110 may determine the first index element by reading a first sequence included in the SS. In some embodiments, the broadcast channel may include a physical broadcast channel, and the second index element may include a plurality of explicit bits included in a main information block on the physical broadcast channel. In some embodiments, the wireless device 110 may decode the broadcast channel using the determined first index element. The wireless device 110 obtains an index value based on the first index element and the second index element. The wireless device 110 uses the acquired index value to determine system information. In some embodiments, the wireless device 110 uses the determined system information to access a network (eg, network 300) associated with the network node 115a. The wireless device 110 can obtain the index value in various ways. As an example, the wireless device 110 can obtain the index value by deriving the index value. The derived index value can be a function of one of the first index element and the second index element. The function can be any suitable function. As an example, the function of the first index element and the second index element may be a series of one of the first index element and the second index element. In some embodiments, the wireless device 110 may obtain the index value by applying the first index element and the second index element to a two-dimensional table in order to obtain the index value. Some exemplary use cases of embodiments contemplated by the present invention will now be described more fully below. However, other embodiments are included in the scope of the present invention and the concepts described herein should not be construed as being limited to the embodiments set forth herein; in fact, these embodiments are provided by way of example to convey the scope of concepts to familiarity The technical person. According to a first exemplary use case, the system information may include system information of a cell associated with a network node. In this case, the wireless device 110 can read an SIB table transmission (for example, if the UE has not already done so). The wireless device 110 may store a SIB table. The network node 115a transmits a first sequence in the form of an SS (including a physical cell identification code (PCI)). In some cases, the SS may include a primary SS (PSS) and a secondary SS (SSS) from which PCI may be determined. The network node 115a also transmits a broadcast channel (e.g., PBCH). The broadcast channel may include a MIB. A broadcast channel may be associated with the SS. In some cases, the broadcast channel may be transmitted with the SS. For example, SS and broadcast channels may be related in the following sense: SS implicitly defines time and frequency resources for PBCH demodulation; uses SS as one of the PBCH demodulation reference signals; and / or uses SS index (Eg, PCI) to derive one of the PBCH demodulation reference signals. The wireless device 110 scans the SS transmission from the network node 115a and selects one of them (eg, the strongest SS it receives, which in this exemplary use case is the SS associated with the network node 115a). The wireless device 110 determines PCI as the first index element. In some cases, PCI may be derived from one of the SS indexes. Using knowledge of PCI, the wireless device 110 may decode a broadcast channel (eg, the PBCH in this exemplary use case). In this first exemplary use case, the PBCH contains a MIB containing a second index element in a CELL_SI_CONFIG field. CELL_SI_CONFIG may include a small number of bits in the MIB included on the broadcast channel. The wireless device 110 determines a CELL_SI_CONFIG element from the MIB. In this exemplary use case, a small number of bits in the MIB are used to indicate a variant of the system information. For each PCI, different variants are allowed (eg, 16 variants). For example, the MIB may contain 4 bits used to derive the index value (ie, the SSI in this example), as described in more detail below. According to this first exemplary use case, the wireless device 110 obtains an index value based on the first index element and the second index element (represented as a system signature index (SSI) in this exemplary use case). For example, the wireless device 110 may derive an index value (ie, SSI) from all the bits or a subset of the bits of CELL_SI_CONFIG from SS (represented as PCI in Equation 1 below) and CELL_SI_CONFIG. This is shown in Equation 1 below:Where SSI is the index value, PCI represents the first index element (i.e., SS index (for example, 10 bits)), And CELL_SI_CONFIG represents the second index element (i.e., Included in a broadcast channel (i.e. A small number of bits in the MIB (e.g., PBCH in this exemplary use case) (e.g., 4 bits)).  The function can be any suitable function. For example, In some embodiments, The function can be a series of one of the PCI bit and the CELL_SI_CONFIG bit. The CELL_SI_CONFIG bit indicates different sets of system information (for example, In an SIB table) and can be used to modify any initial access parameters. Other functions can be used. For example, A function may use only the M most significant bits in PCI and concatenate their bits with the bits in CELL_SI_CONFIG. In some embodiments, Functions to be applied are also available on broadcast channels (for example, PBCH).  In some embodiments of this exemplary use case, A one-bit field is formed by the operation of the functions of the first index element and the second index element. In this case, The bit field formed by the function can be converted into an index value that the wireless device 110 can use to select an SIB from the SIB table stored by the wireless device 110. then, The wireless device 110 can access the network according to the derived system information.  According to a second exemplary use case, The system information may include system information of one of the plurality of beams associated with the network node. In some embodiments, The network node 115a can transmit a plurality of beams. Within a community, There will be multiple beams. For example, In high frequency bands (e.g., One cell operating in more than 6 GHz) may have up to 64 beams. For mid-band (for example, Between 3 GHz and 6 GHz), The maximum number of beams will be 8, And for low frequency bands (e.g., Below 3 GHz), The maximum number of beams will be 4. To encode the 64 beams, Six bits of information are needed to indicate which beam a wireless device is in. Each beam will have an index value indicating the system information for that beam. To indicate this system information, The network node 115a transmits an SS block index in each beam, And each beam will have a different SS block index.  For SS block index, The network node 115a transmits a sequence (e.g., -DMRS), And a broadcast channel containing one MIB with additional information (for example, PBCH). A first index element is passed through the DMRS of the NR-PBCH. For example, The DMRS may indicate three bits before a total of six bits used as an index value. When decoding the NR-PBCH, The wireless device 110 can first estimate which of the eight possible DMRS sequences is most likely to be used as the DMRS sequence and this provides the wireless device 110 with up to three bits of the SS block index (also known as the implicit bit of the SS block index ). A second index element is passed in the PBCH through three explicit bits in the MIB. The three implicit bits of the DMRS sequence and the three explicit bits in the PBCH together enable the wireless device 110 to obtain an index value indicating the beam index, The index value is then used to determine the system information of the beam.  For example, The wireless device 110 may receive a sequence including (e.g., DMRS) and PBCH (which contains MIB) SS block index. The wireless device 110 uses DMRS to decode the PBCH. For example, The wireless device 110 may know a fixed number of possible DMRS sequences that can be used to decode the PBCH (e.g., Eight different DMRS sequence candidates). The wireless device 110 attempts to decode the PBCH using one or more of the possible DMRS sequences. Once the wireless device 110 has determined the correct DMRS, The wireless device 110 determines the first index element as the three implicit bits indicated by the DMRS sequence. then, The wireless device 110 decodes the PBCH, And can determine the second index element (i.e., (Three explicit bits included in the PBCH's MIB). The wireless device 110 obtains an index value based on the first index element and the second index element. For example, The wireless device 110 may obtain the index value by concatenating the three bits indicated by the DMRS and one of the three explicit bits included in the MIB. then, The wireless device 110 may use the acquired index value to determine the system information of a beam.  According to a third exemplary use case, The embodiments described above can be used for indexing on-demand system information. In this case, Each cell associated with a network node 115 may belong to a system information area ID. Some SIBs may be valid in the entire system information area containing multiple cells. In this case, The network node 115a transmits a sequence (e.g., A PCI), A first index element can be determined from the sequence. PCI is directly derived from the sequence indexes of a primary synchronization signal and a secondary synchronization signal (represented as NR-PSS and NR-SSS, respectively). In addition, The network node 115a transmits a broadcast channel including a second index element. For example, The network node 115a may broadcast one or more value tags about one or more SIBs or system information messages containing multiple SIBs, And one of the SI area IDs associated with the cell. The value tag and the system information area ID associated with the cell may together form a second index element. The value tag and the system information area ID can be used as the remaining minimum system information (RMSI) broadcast (scheduled on a physical downlink control channel (PDCCH) and transmitted on a physical downlink shared channel (PDSCH)). The channel used for RMSI broadcasting is associated with PCI, The channel configuration is exported from PCI.  The wireless device 110 receives a sequence (i.e., In this third exemplary use case, the PSS / SSS of the PCI) and the broadcast value tag and the system information area ID are provided. The wireless device 110 determines PCI as the first index element, The determination value label and the system information area ID are used as the second index element. The wireless device 110 is based on PCI, An index value is obtained by the value label and the system information area ID. then, The wireless device 110 may use the acquired index value to determine system information.  According to a fourth exemplary use case, The embodiments described herein are applicable to carrier aggregation. For example, In some embodiments, The network node 115a may transmit SS blocks on multiple component carriers. Each component carrier will be associated with a frequency location. The SS block index may include a PSS / SSS sequence indicating a PCI. The wireless device 110 receives an SS block. To access component carriers, The wireless device 110 determines a first index element in the form of PCI from the PSS / SSS sequence. The wireless device 110 determines a second index element in the form of a frequency position of the component carrier. Based on the determined first index value (i.e., PCI in this fourth exemplary use case) and the determined second index value (i.e., The frequency position of the component carrier in this fourth exemplary use case), The wireless device 110 obtains an index value. The wireless device 110 uses the acquired index value to obtain system information of the component carrier.  According to a fifth exemplary use case, The system information may include information about a target cell to be delivered by the wireless device. When the wireless device 110 travels from one cell to another cell, The wireless device 110 may obtain information from the source cell in advance before performing the handover. After entering the target cell, The wireless device 110 may determine a first index element in the form of a PCI of a target cell (for example, Based on a sequence, (Such as PSS / SSS transmitted via network node 115a). In addition, The wireless device 110 determines a second index element from a beam index (which may be included in a MIB of a PBCH) of a beam in a target cell broadcast by the network node 115a. Based on the first index element (ie, PCI in this fifth exemplary use case) and the second index element (ie, Beam index in this fifth exemplary use case), The wireless device 110 obtains an index value. For example, The wireless device 110 may apply the first index element and the second index element to a two-dimensional table to obtain an index value indicating system information of a beam in a target cell.  FIG. 4 is a flowchart of a method 400 in a wireless device according to some embodiments. The method 400 starts at step 404, Where the wireless device receives one or more transmissions from a network node, The one or more transmissions include a first sequence and a broadcast channel associated with the first sequence. In some embodiments, The wireless device may be a UE.  In some embodiments, The first sequence may be included in an SS. In some embodiments, The broadcast channel may be associated with the first sequence due to one or more of the following: SS implicitly defines time and frequency resources used for demodulation of broadcast channels; And use SS as one of the broadcasting channels to demodulate the reference signal.  At step 408, The wireless device determines a first index element based on the first sequence. In some embodiments, The first index element may include a plurality of bits, And determining the first index element may include reading a first sequence included in the SS.  In some embodiments, The broadcast channel may be associated with the first sequence due to one or more of the following: Using a first index element to derive a demodulation reference signal of a broadcast channel; And use the first sequence to derive one channel configuration of the broadcast channel.  At step 412, The wireless device determines a second index element based on the information on the broadcast channel. In some embodiments, The broadcast channel may include a physical broadcast channel, And the second index element may include a plurality of explicit bits included in one MIB on the physical broadcast channel. In some embodiments, The method may include decoding the broadcast channel using the determined first index element.  At step 416, The wireless device obtains an index value based on the first index element and the second index element. In some embodiments, Obtaining an index value may include deriving the index value, The derived index value is a function of the first index element and the second index element. The function of the first index element and the second index element may be a concatenation of the first index element and one of the second index element.  At step 420, The wireless device uses the acquired index value to determine system information. In some embodiments, The method may include using the determined system information to access a network associated with the network node. In some embodiments, The system information may include system information of a cell associated with the network node. In some embodiments, The system information may include system information of one of the plurality of beams associated with the network node. In some embodiments, The system information may include information about a target cell to be delivered by the wireless device.  FIG. 5 is a flowchart of a method 500 in a network node according to some embodiments. The method 500 starts at step 504, The network node defines system information for one or more aspects of wireless communication between the network node and a wireless device. In some embodiments, The wireless device may be a UE.  At step 508, The network node transmits a first sequence to the wireless device, The first sequence enables the wireless device to determine a first index element based on the first sequence. In some embodiments, Transmitting the first sequence may include transmitting an SS including one of the first sequences. In some embodiments, The first index element may include a plurality of bits that can be determined by reading the first sequence included in the SS.  At step 512, The network node transmits one of the broadcast channels associated with the first sequence to the wireless device, The broadcast channel enables the wireless device to determine a second index element based on the information on the broadcast channel, The first index element and the second index element enable the wireless device to obtain an index value indicating one of the defined system information. In some embodiments, The index value may be a function of one of the first index element and the second index element. In some embodiments, The function of the first index element and the second index element is a series of the first index element and one of the second index element. In some embodiments, The system information may include system information of a cell associated with the network node. In some embodiments, The system information may include system information of one of the plurality of beams associated with the network node. In some embodiments, The system information may include information about a target cell to be delivered by the wireless device.  In some embodiments, The broadcast channel may be associated with the first sequence due to one or more of the following: SS implicitly defines time and frequency resources used for demodulation of broadcast channels; And use SS as one of the broadcasting channels to demodulate the reference signal. In some embodiments, The broadcast channel may be associated with the first sequence due to one or more of the following: Using a first index element to derive a demodulation reference signal of a broadcast channel; And use the first sequence to derive one channel configuration of the broadcast channel.  In some embodiments, The broadcast channel may include a physical broadcast channel, And the second index element includes a plurality of explicit bits included in a main information block on the physical broadcast channel.  FIG. 6 is a flowchart of a method 600 in a wireless device according to some embodiments. The method 600 starts at step 604, The wireless device reads an SS and determines a physical cell identification code. In some embodiments, The wireless device may be a UE. In some embodiments, The wireless device can determine a table of system information configuration (for example, SIB table). In some embodiments, Wireless devices can store SIB tables. In some embodiments, The wireless device can scan the SS transmission and select one of them (e.g., It receives the strongest SS) and reads the SS. In some embodiments, The wireless device can determine the physical cell identification code (PCI) as the index of the SS.  At step 608, The wireless device receives one of the physical broadcast channels transmitted along with the SS. At step 612, The wireless device determines a set of cell system information configuration bits from the received entity broadcast channel. In some embodiments, Wireless devices can use the knowledge of PCI to decode physical broadcast channels. In some embodiments, The physical broadcast channel contains a MIB, One element is the cell system information configuration bit. In some embodiments, The community system information configuration bit can be located in a CELL_SI_CONFIG field.  At step 616, The wireless device determines a system signature index for selecting a system information configuration from a table of system information configurations by combining the physical cell identification code and the system information configuration bits of the cell. In some embodiments, The system signature index can be used to select a new index of a system information block configuration from a table consisting of several synchronized configurations. In some embodiments, The system signature index can be determined as a function of the physical cell identification code and the cell system information configuration bit set. In some embodiments, The function may be connected in series with one of the physical cell identifier and one of the cell system information configuration bits. In some embodiments, The function can concatenate the M most significant bits in the physical cell identification code and concatenate them with the bits in the cell system information configuration bit set. In some embodiments, A one-bit field can be formed by a function and can be converted into an index for selecting one of the system information blocks from the SIB table.  At step 620, The wireless device determines the system information block by selecting the system information in the system signature index from the system information configuration table.  At step 624, The wireless device accesses the network based on the information provided in the system information block.  FIG. 7 is a block diagram of an exemplary UE according to one of some embodiments. As shown in Figure 7, The UE 700 is one of the exemplary wireless devices 110 described above. UE 700 includes an antenna 705, Radio front-end circuit 710, The processing circuit 715 and a computer-readable storage medium 730. The antenna 705 may include one or more antennas or antenna arrays, And configured to send and / or receive wireless signals, And connected to the radio front-end circuit 710. In some alternative embodiments, The wireless device 700 may not include the antenna 705. And the antenna 705 may be separately separated from the wireless device 700 and may be connected to the wireless device 700 through an interface or a port.  The radio front-end circuit 710 may include various filters and amplifiers, Connected to antenna 705 and processing circuit 715, And it is configured to adjust the signal communicated between the antenna 705 and the processing circuit 715. In some alternative embodiments, The UE 700 may not include the radio front-end circuit 710, And the processing circuit 715 may instead be connected to the antenna 705 without the radio front-end circuit 710.  The processing circuit 715 may include a radio frequency (RF) transceiver circuit, One or more of a baseband processing circuit and an application processing circuit. In some embodiments, RF transceiver circuit, The baseband processing circuit and the application processing circuit may be on separate chipsets. In an alternative embodiment, Part or all of the baseband processing circuit and the application processing circuit can be combined into one chipset, And the RF transceiver circuit can be on a separate chipset. In yet another alternative embodiment, Some or all of the RF transceiver circuit and the fundamental frequency processing circuit may be on the same chipset, And the application processing circuit can be on a separate chipset. In other alternative embodiments, RF transceiver circuit, Part or all of the baseband processing circuit and the application processing circuit can be combined in the same chipset. The processing circuit 715 may include, for example, one or more central processing units (CPUs), One or more microprocessors, One or more application specific integrated circuits (ASICs) and / or one or more field programmable gate arrays (FPGAs).  In a specific embodiment, Some or all of the functionality described herein as being provided by a wireless device may be provided by the processing circuit 715 executing instructions stored on a computer-readable storage medium 730. In an alternative embodiment, Some or all of the functionality may be provided by the processing circuit 715 without executing instructions stored on a computer-readable medium, such as in a hard-wired manner. In any of their specific embodiments, Whether or not the instructions stored on a computer-readable storage medium are executed, It is claimed that the processing circuit can be configured to perform the described functionality. The benefits provided by this functionality are not limited to individual processing circuits 715 or other components of the UE 700, And enjoyed by the UE as a whole, And / or generally enjoyed by end users and wireless networks.  Antenna 705, The radio front-end circuit 710 and / or the processing circuit 715 may be configured to perform any receiving operation described herein as being performed by a UE or a wireless device. Can receive any information from a network node and / or another wireless device, Information and / or signals.  The processing circuit 715 may be configured to perform any decision operation described herein as being performed by a wireless device. The determination performed by the processing circuit 715 may include: The processing is performed by the processing circuit 715 by, for example, converting the acquired information into other information; Compare the acquired or converted information with the information stored in the wireless device; And / or information obtained based on the obtained information or the conversion of information to perform one or more operations, And a judgment is made as a result of this processing.  Antenna 705, The radio front-end circuit 710 and / or the processing circuit 715 may be configured to perform any transmission operation described herein as being performed by a wireless device. Any information, Data and / or signals are transmitted to a network node and / or another wireless device.  The computer-readable storage medium 730 is generally operable to store instructions, Such as a computer program, software, Contains logic, rule, Code, One or more applications, And / or other instructions that can be executed by a processor. Examples of computer-readable storage media 730 include computer memory (for example, RAM or ROM), Mass storage media (for example, A hard drive), Removable storage media (for example, A compact disc (CD) or a digital video disc (DVD)), And / or store information that can be used by processing circuit 715, Information and / or instructions for any other volatile or non-volatile non-transitory computer-readable and / or computer-executable memory device. In some embodiments, The processing circuit 715 and the computer-readable storage medium 730 may be considered as integrated.  Alternative embodiments of the UE 700 may include additional components in addition to the components shown in FIG. 7, They may be responsible for providing certain aspects of the functionality of the UE, including any of the functionality described herein and / or any functionality necessary to support the solution described above. As just one example, UE 700 can include an input interface, Devices and circuits 720, And output interface, Device and circuit 725. Input interface, Devices and circuits 720 are configured to allow information to be entered into the UE 700, And connected to the processing circuit 715 to allow the processing circuit 715 to process the input information. For example, Input interface, The device and circuit 720 may include a microphone, A proximity or other sensor, Key / button, A touch display, One or more cameras, A USB port or other input component. Output interface, Devices and circuits 725 are configured to allow information to be output from the UE 700, And connected to the processing circuit 715 to allow the processing circuit 715 to output information from the UE 700. For example, Output interface, The device or circuit 725 may include a speaker, A display, Vibration circuit, A USB port, A headphone interface or other output element. Using one or more input and output interfaces 720, 725, Devices and circuits, UE 300 can communicate with end users and / or wireless networks, And allow them to benefit from the functionality described in this article.  As another example, The UE 700 may include a power source 735. The power supply 735 may include a power management circuit. The power source 735 can receive power from a power supply, The power supply may be included in or external to the power source 735. For example, The UE 700 may include a power supply in the form of a battery or battery pack connected to or integrated in the power source 735. Other types of power can also be used, Such as photovoltaic devices. As a further example, The UE 700 may be connectable to an external power supply (such as an electrical outlet) via an input circuit or interface (such as a cable), Thereby, the external power supply supplies power to the power source 735. The power supply 735 can be connected to the radio front-end circuit 710, The processing circuit 715 and / or the computer-readable storage medium 730 are configured to supply power to the UE 700 including the processing circuit 715 for performing the functions described herein.  The UE 700 may also include different wireless technologies such as (for example) GSM, WCDMA, LTE, NR, WiFi or Bluetooth wireless technology) multiple sets of processing circuits 715, Computer-readable storage media 730, Radio circuit 710 and / or antenna 705. These wireless technologies can be integrated into the same or different chipset and other components within the wireless device 700.  FIG. 8 is a block schematic diagram of an exemplary wireless device 110 according to one of some embodiments. The wireless device 110 may refer to any type of wireless device that communicates with a node and / or with another wireless device in a cellular or mobile communication system. Examples of the wireless device 110 include a mobile phone, A smart phone, A PDA (Personal Digital Assistant), A portable computer (for example, Laptop, tablet), A sensor, Actuator, A modem, A machine type communication (MTC) device / machine-to-machine (M2M) device, Laptop Embedded Devices (LEE), Laptop installation equipment (LME), USB hardware lock, A D2D function device, Or another device that can provide wireless communication. In some embodiments, A wireless device 110 may also be referred to as a UE, One stop (STA), A device or a terminal. The wireless device 110 includes a transceiver 810, Processing circuit 820 and memory 830. In some embodiments, The transceiver 810 facilitates (e.g., Transmitting and receiving wireless signals to and from the network node 115 via the antenna 840), The processing circuit 820 executes instructions to provide some or all of the functionality described above as being provided by the wireless device 110, And the memory 830 stores the instructions executed by the processing circuit 820.  The processing circuit 820 may include one or more modules implemented to execute instructions and manipulate data to perform some or all of the functions described by the wireless device 110 (such as the functions of the wireless device 110 described above with reference to FIGS. 1 to 6). Any suitable combination of hardware and software. In some embodiments, The processing circuit 820 may include, for example, one or more computers, One or more central processing units (CPUs), One or more microprocessors, One or more apps, One or more application specific integrated circuits (ASICs), One or more fields can be programmed with a gate array (FPGA) and / or other logic.  The memory 830 is generally operable to store instructions, Such as a computer program, software, Contains logic, rule, Algorithm, Code, One or more applications, And / or other instructions that can be executed by the processing circuit 820. Examples of memory 830 include computer memory (for example, RAM or ROM), Mass storage media (for example, A hard drive), Removable storage media (for example, A CD or a DVD), And / or store information that can be used by the processing circuit 820, Information and / or instructions for any other volatile or non-volatile non-transitory computer-readable and / or computer-executable memory device.  Other embodiments of the wireless device 110 may include additional components in addition to the components shown in FIG. 8, They may be responsible for providing some functionality of the wireless device (including any of the functionality described above and / or any additional functionality (including any functionality necessary to support the solution described above)) kind. As just one example, The wireless device 110 may include input devices and circuits, Output devices and one or more synchronization units or circuits, These may be part of the processing circuit 820. The input device includes a mechanism for entering data into the wireless device 110. For example, The input device may include an input mechanism, Such as a microphone, Input components, A monitor, etc. Output devices can include Organizations that export data in video and / or hard copy format. For example, The output device can include a speaker, A monitor, etc.  FIG. 9 is a block diagram of an exemplary network node 115 according to one of the embodiments. The network node 115 may be any type of radio network node or any network node that communicates with one UE and / or with another network node. Examples of network node 115 include an eNodeB, One gNB, A node B, A base station, A wireless access point (e.g., A Wi-Fi access point), A low power node, A base transceiver station (BTS), relay, Donor node controls relay, Transfer point, Transmission nodes, Remote RF unit (RRU), Remote Radio Front End (RRH), Multi-standard radio (MSR) radio nodes (such as MSR BS), Nodes in a distributed antenna system (DAS), O & M, OSS, SON, Anchor nodes (e.g., E-SMLC), MDT or any other suitable network node. Network node 115 can be deployed as homogeneous deployment throughout network 100, Heterogeneous or hybrid deployment. A homogeneous deployment may generally describe one deployment consisting of the same (or similar) type of network node 115 and / or similar coverage area and cell size and inter-site distance. A heterogeneous deployment can generally describe the use of different cell sizes, Transmission power, Deployment of various types of network nodes 115 of capacity and distance between stations. For example, A heterogeneous deployment may include multiple low-power nodes placed throughout a giant cell layout. A hybrid deployment can include a mixture of one homogeneous part and one heterogeneous part.  The network node 115 may include a transceiver 910, Processing circuit 920, One or more of the memory 930 and the network interface 940. In some embodiments, The transceiver 910 facilitates (e.g., Transmitting and receiving wireless signals to and from the wireless device 110 via the antenna 950), The processing circuit 920 executes instructions to provide some or all of the functionality described above as being provided by a network node 115, The memory 930 stores instructions executed by the processing circuit 920, And the network interface 940 transmits signals to the back-end network components, Such as a gateway, switch, router, Internet, Public Switched Telephone Network (PSTN), A core network node or a radio network controller 130 and the like.  The processing circuit 920 may include hardware implemented in one or more modules to execute instructions and manipulate data to perform some or all of the functions described in the network node 115 (such as the functions described above with respect to FIGS. 1-6) And any suitable combination of software. In some embodiments, The processing circuit 920 may include, for example, one or more computers, One or more CPUs, One or more microprocessors, One or more apps, One or more ASICs, One or more FPGAs and / or other logic.  The memory 930 is generally operable to store instructions, Such as a computer program, software, Contains logic, rule, Algorithm, Code, One or more applications, And / or other instructions that can be executed by the processing circuit 920. Examples of memory 930 include computer memory (for example, RAM or ROM), Mass storage media (for example, A hard drive), Removable storage media (for example, A CD or a DVD), And / or any other volatile or non-volatile non-transitory computer-readable and / or computer-executable memory device that stores information.  In some embodiments, Network interface 940 is communicatively coupled to processing circuit 920 and may refer to being operable to receive input from network node 115, Send output from network node 115, Perform input or output or a suitable processing of both, Any suitable device that communicates with other devices or any combination of the foregoing. The network interface 940 may include appropriate hardware (e.g., port, Modem, Network interface cards, etc.) and software (including protocol conversion and data processing capabilities) to communicate over a network.  Other embodiments of the network node 115 may include additional components in addition to the components shown in FIG. 9, They may be responsible for providing the functionality of a radio network node (including any of the functionality described above and / or any additional functionality (including any functionality necessary to support the solution described above)) Some aspects. Different types of network nodes can include but be configured with the same physical hardware (for example, (Programmed) to support components of different radio access technologies, Or may represent part or completely different physical components.  FIG. 10 is a block diagram of an exemplary radio network controller or core network node 130 according to one of some embodiments. Examples of network nodes may include a mobile switching center (MSC), A servo GPRS support node (SGSN), A mobility management entity (MME), A radio network controller (RNC), A base station controller (BSC) and so on. The radio network controller or core network node 130 includes a processing circuit 1020, Memory 1030 and network interface 1040. In some embodiments, The processing circuit 1020 executes instructions to provide some or all of the functionality described above as being provided by a network node, The memory 1030 stores instructions executed by the processing circuit 1020, And the network interface 1040 communicates the signal to any suitable node, Such as a gateway, switch, router, Internet, Public Switched Telephone Network (PSTN), Network node 115, Radio network controller or core network node 130, etc.  The processing circuit 1020 may include any suitable combination of hardware and software implemented in one or more modules to execute instructions and manipulate data to perform some or all of the functions described by the radio network controller or core network node 130. In some embodiments, The processing circuit 1020 may include, for example, one or more computers, One or more CPUs, One or more microprocessors, One or more apps, One or more ASICs, One or more FPGAs and / or other logic.  The memory 1030 is generally operable to store instructions, Such as a computer program, software, Contains logic, rule, Algorithm, Code, One or more applications, And / or other instructions that can be executed by the processing circuit 1020. Examples of memory 1030 include computer memory (for example, RAM or ROM), Mass storage media (for example, A hard drive), Removable storage media (for example, A CD or a DVD), And / or any other volatile or non-volatile non-transitory computer-readable and / or computer-executable memory device that stores information.  In some embodiments, The network interface 1040 is communicatively coupled to the processing circuit 1020 and may refer to being operable to receive input from a network node, Sending output from network nodes, Perform input or output or a suitable processing of both, Any suitable device that communicates with other devices or any combination of the foregoing. The network interface 1040 may include appropriate hardware (e.g., port, Modem, Network interface cards, etc.) and software (including protocol conversion and data processing capabilities) to communicate over a network.  Other embodiments of the network node may include additional components in addition to the components shown in FIG. 10, They may be responsible for providing some of the functionality of the network nodes (including any of the functionality described above and / or any additional functionality (including any functionality necessary to support the solution described above)) Appearance.  11 is a schematic block diagram of an exemplary wireless device according to one of some embodiments. The wireless device 110 may include one or more modules. For example, The wireless device 110 may include a determination module 1110, A communication module 1120, A receiving module 1130, An input module 1140, A display module 1150 and any other suitable module. In some embodiments, One or more processors (such as the processing circuit 820 described above with respect to FIG. 8) may be used to implement the determination module 1110, Communication module 1120, Receiving module 1130, Input module 1140, Display module 1150 or one or more of any other suitable modules. In some embodiments, The functions of two or more of various modules can be combined into a single module. The wireless device 110 may perform the method for the enhanced index-based system information distribution described above with reference to FIGS. 1 to 6.  The determination module 1110 can perform processing functions of the wireless device 110. For example, The determination module 1110 may determine a first index element based on the first sequence. As another example, The determination module 1110 may determine a second index element based on the information on the broadcast channel. As yet another example, The determination module 1110 may obtain an index value based on the first index element and the second index element. As yet another example, The determination module 1110 may use the obtained index value to determine the system information. As another example, The determination module 1110 may use the determined system information to access a network associated with a network node. As another example, The judgment module 1110 can derive an index value, The derived index value is a function of the first index element and the second index element. As another example, The determination module 1110 may determine a first index element by reading a first sequence included in an SS. As another example, The determination module 1110 may decode the broadcast channel using the determined first index element.  As another example, In some embodiments, The determination module 1110 can read an SS and determine a physical cell identification code. The determination module 1110 can determine a cell system information configuration bit set from the received physical broadcast channel. The determination module 1110 may determine a system signature index for selecting a system information configuration from a table of system information configurations by combining a physical cell identification code and a cell system information configuration bit. The determination module 1110 can determine a system information block by selecting system information having a system signature index from a system information configuration table. The determination module 1110 can access the network according to the information provided in the system information block.  The determination module 1110 may include or be included in one or more processors. A processing circuit 820 such as described above with respect to FIG. 8. Decision module 1110 may include analog and / or digital circuits configured to perform any of the functions of decision module 1110 and / or processing circuit 820 described above. In some embodiments, The functions of the determination module 1110 described above may be performed in one or more distinct modules.  The communication module 1120 may perform a transmission function of the wireless device 110. For example, The communication module 1120 may use the determined system information to access a network associated with the network node. As another example, The communication module 1120 can access the network according to the information provided in the system information block. The communication module 1120 may include a transmitter and / or a transceiver, A transceiver 810 such as described above with respect to FIG. 8. The communication module 1120 may include circuits configured to transmit messages and / or signals wirelessly. In a specific embodiment, The communication module 1120 may receive messages and / or signals for transmission from the determination module 1110. In some embodiments, The functions of the communication module 1120 described above may be performed in one or more distinct modules.  The receiving module 1130 may perform a receiving function of the wireless device 110. For example, The receiving module 1130 can receive one or more transmissions from a network node. The one or more transmissions include a first sequence and a broadcast channel associated with the first sequence. As another example, The receiving module 1130 may receive one physical broadcast channel transmitted together with the SS. The receiving module 1130 may include a receiver and / or a transceiver. The receiving module 1130 may include a receiver and / or a transceiver, A transceiver 810 such as described above with respect to FIG. 8. The receiving module 1130 may include circuitry configured to receive messages and / or signals wirelessly. In a specific embodiment, The receiving module 1130 may transmit the received messages and / or signals to the determination module 1110. In some embodiments, The functions of the receiving module 1130 described above may be performed in one or more distinct modules.  The input module 1140 may receive user input intended for the wireless device 110. For example, The input module can receive key presses, Button press, touch, slide, Audio signals, Video signals and / or any other appropriate signals. The input module can include one or more keys, Button, lever, switch, Touch screen, Microphone and / or camera. The input module can communicate the received signal to the determination module 1110. In some embodiments, The functions of the input module 1140 described above may be performed in one or more distinct modules.  The display module 1150 can present signals on a display of the wireless device 110. The display module 1150 may include a display and / or any suitable circuitry and hardware configured to present signals on the display. The display module 1150 can receive signals from the determination module 1110 to be presented on a display. In some embodiments, The functions of the display module 1150 described above may be performed in one or more distinct modules.  Decision module 1110, Communication module 1120, Receiving module 1130, The input module 1140 and the display module 1150 may include any suitable configuration of hardware and / or software. The wireless device 110 may include additional modules in addition to the modules shown in FIG. 11, They may be responsible for providing any suitable functionality, Contains any of the functionality described above and / or any additional functionality (including any functionality necessary to support the various solutions described herein).  FIG. 12 is a schematic block diagram of an exemplary network node 115 according to one of some embodiments. The network node 115 may include one or more modules. For example, The network node 115 may include a determination module 1210, Communication module 1220, Receive module 1230 and any other suitable module. In some embodiments, The decision module 1210, such as the processing circuit 920 described above with respect to FIG. 9, may be implemented using one or more processors, Communication module 1220, The receiving module 1230 or one or more of any other suitable modules. In some embodiments, The functions of two or more of various modules can be combined into a single module. The network node 115 may perform the method for the enhanced index-based system information distribution described above with respect to FIGS. 1 to 6.  The determination module 1210 can perform processing functions of the network node 115. As an example, The determination module 1210 may define system information for one or more aspects of wireless communication between the network node and a wireless device.  The determination module 1210 may include or be included in one or more processors. A processing circuit 920 such as described above with respect to FIG. 9. Decision module 1210 may include analog and / or digital circuits configured to perform any of the functions of decision module 1210 and / or processing circuit 920 described above. In some embodiments, The function of the determination module 1210 may be performed in one or more distinct modules.  The communication module 1220 can perform a transmission function of the network node 115. As an example, The communication module 1220 can transmit a first sequence to the wireless device, The first sequence enables the wireless device to determine a first index element based on the first sequence. As another example, The communication module 1220 may transmit a broadcast channel associated with the first sequence to the wireless device, The broadcast channel enables the wireless device to determine a second index element based on the information on the broadcast channel, The first index element and the second index element enable the wireless device to obtain an index value indicating one of the defined system information. As yet another example, The communication module 1220 can transmit one SS including a first sequence.  The communication module 1220 can transmit messages to one or more of the wireless devices 110. The communication module 1220 may include a transmitter and / or a transceiver, A transceiver 910 such as described above with respect to FIG. 9. The communication module 1220 may include circuits configured to transmit messages and / or signals wirelessly. In a specific embodiment, The communication module 1220 may receive messages and / or signals for transmission from the determination module 1210 or any other module. In some embodiments, The function of the communication module 1220 may be performed in one or more distinct modules.  The receiving module 1230 may perform a receiving function of the network node 115. The receiving module 1230 can receive any suitable information from a wireless device. The receiving module 1230 may include a receiver and / or a transceiver, A transceiver 910 such as described above with respect to FIG. 9. The receiving module 1230 may include circuitry configured to receive messages and / or signals wirelessly. In a specific embodiment, The receiving module 1230 may communicate the received messages and / or signals to the determination module 1210 or any other suitable module. In some embodiments, The function of the receiving module 1230 may be performed in one or more distinct modules.  Decision module 1210, The communication module 1220 and the receiving module 1230 may include any suitable configuration of hardware and / or software. The network node 115 may include additional modules in addition to the modules shown in FIG. 12, They may be responsible for providing any suitable functionality, Contains any of the functionality described above and / or any additional functionality (including any functionality necessary to support the various solutions described herein).  Modifications to the systems and devices described herein may be made without departing from the scope of the invention, Add or omit. The components of systems and devices may be integrated or separated. In addition, The operation of systems and devices can be achieved by more, Fewer or other components execute. Additionally, Available including software, Any suitable logic of hardware and / or other logic to perform the operations of the system and device. As used in this file, "Each" means each member of a episode or each member of a subset of an episode.  Modifications to the methods described herein may be made without departing from the scope of the invention, Add or omit. Methods can include more, Fewer or other steps. Additionally, The steps can be performed in any suitable order.  Although the invention has been described in terms of certain embodiments, However, those skilled in the art will understand the changes and substitutions of the embodiments. Correspondingly, The above description of the examples does not limit the invention. Other changes, Substitutions and changes are possible without departing from the spirit and scope of the invention as defined by the following patent application scope.  The abbreviations used in the preceding description include:  3GPP 3rd Generation Partnership Project AGC Automatic Gain Control AP Access Point ASIC Specific Application Integrated Circuit BER Block Error Rate BS Base Station BSC Base Station Controller BTS Base Transceiver Station CD Disc CPE Client Device CPU Central Processing Unit CRC Cyclic redundancy check D2D inter-device DAS distributed antenna system DL downlink DMRS demodulation reference signal DVD digital video disc eNB evolved node B E-SMLC evolved servo action position center FPGA field programmable gate array GPS global positioning system IoT IoT IP Internet Protocol LAN Local Area Network LAN Laptop Embedded Device LME Laptop Installed Device LTE Long Term Evolution M2M MAC Message Authentication Code MAN Metropolitan Area Network Multicast / Multicast Coordination Entity MCS Modulation level and coding scheme MDT drive test minimized MIB main information block MIMO multiple input multiple output MME mobility management entity MSC mobile switching center MSR multi-standard radio MTC machine type communication NAS non-access layer NB-IoT narrowband IoT NR new radio O & M operation and management OSS operation support system PBCH physical broadcast frequency PCI physical cell identifier PDCCH physical downlink control channel PDSCH physical downlink shared channel PRACH physical random access channel PSS primary synchronization signal PSTN public switched telephone network RAM random access memory RAN radio access network RAR random Access Response RAT Radio Access Technology RNC Radio Network Controller RMSI Remaining Minimum System Information ROM Read-Only Memory RRC Radio Resource Control RRH Remote Radio Front End RRU Remote Radio Unit SFN Single Frequency Network SIB System Information Block SS Synchronization Signal SSI system signature index SSS secondary synchronization signal SON ad hoc network TR technical report UE user equipment UL uplink WAN wide area network WLAN wireless area network

110‧‧‧Wireless device

115‧‧‧ network node

115a‧‧‧Network Node

115b‧‧‧Network Node

125a‧‧‧ wireless signal

125b‧‧‧ wireless signal

130‧‧‧Radio Network Controller / Core Network Node

205‧‧‧Sync Signal (SS)

210‧‧‧ Master Information Block (MIB)

215‧‧‧ Broadcasting System Information Block (SIB)

220‧‧‧ Physical Random Access Channel (PRACH)

225‧‧‧RAR

300‧‧‧Internet

320‧‧‧internet

400‧‧‧Method

404‧‧‧step

408‧‧‧step

412‧‧‧step

416‧‧‧step

420‧‧‧step

500‧‧‧method

504‧‧‧step

508‧‧‧step

512‧‧‧step

600‧‧‧ Method

604‧‧‧step

608‧‧‧step

612‧‧‧step

616‧‧‧step

620‧‧‧step

624‧‧‧step

700‧‧‧User Equipment (UE) / Wireless Device

705‧‧‧antenna

710‧‧‧Radio front-end circuit

715‧‧‧Processing circuit

720‧‧‧ input interface, device and circuit

725‧‧‧output interface, device and circuit

730‧‧‧ computer-readable storage media

735‧‧‧ Power

810‧‧‧Interface / Transceiver

820‧‧‧Processor

830‧‧‧Memory

840‧‧‧ Antenna

910‧‧‧Interface / Transceiver

920‧‧‧Processor / Processing Circuit

930‧‧‧Memory

940‧‧‧Interface / Internet Interface

950‧‧‧ Antenna

1020‧‧‧Processing Circuit

1030‧‧‧Memory

1040‧‧‧Interface

1110‧‧‧Judgment Module

1120‧‧‧Communication Module

1130‧‧‧Receiving Module

1140‧‧‧input module

1150‧‧‧Display Module

1210‧‧‧Judgment Module

1220‧‧‧Communication Module

1230‧‧‧Receiving module

For a more complete understanding of the disclosed embodiments and their features and advantages, reference is now made to the following description in conjunction with the accompanying drawings, where: FIG. 1 illustrates an example of the proposed system information extraction for 5G-NR; 2 illustrates one example of how a wireless device captures minimal system information that enables it to perform a PRACH transmission and receive an RAR according to one of some embodiments; FIG. 3 illustrates one of the networks according to some embodiments A block diagram of one embodiment; FIG. 4 is a flowchart of a method in a wireless device according to some embodiments; FIG. 5 is a flowchart of a method in a network node according to some embodiments FIG. 6 is a flowchart of a method in a wireless device according to some embodiments; FIG. 7 is a block diagram of an exemplary UE according to some embodiments; FIG. 8 is a block diagram according to some embodiments A block diagram of an exemplary wireless device; FIG. 9 is a block diagram of an exemplary network node according to one of the embodiments; FIG. 10 is an exemplary radio network controller or core according to one of the embodiments. network One point of a block schematic; FIG. 11 schematic view showing one case in accordance with one embodiment of the certain exemplary embodiments the wireless device block diagram; and FIG. 12 schematic view showing an exemplary according to one certain embodiment of the network node block.

Claims (48)

A method in a wireless device (110), comprising: receiving (404) one or more transmissions (125a, 125b) from a network node (115), the one or more transmissions including a first sequence and A broadcast channel associated with the first sequence; determining (408) a first index element based on the first sequence; determining (412) a second index element based on information on the broadcast channel; based on the first index element And the second index element obtains (416) an index value; and uses the acquired index value to determine (420) system information. The method of claim 1, comprising using the determined system information to access a network (300) associated with the network node. The method of claim 1, wherein obtaining an index value comprises: deriving the index value, wherein the derived index value is a function of the first index element and the second index element. The method of claim 3, wherein the function of the first index element and the second index element is a series of one of the first index element and the second index element. The method of claim 1, wherein the first sequence is included in a synchronization signal. The method of claim 5, wherein: the first index element includes a plurality of bits; and determining the first index element includes reading the first sequence included in the synchronization signal. The method of claim 5, wherein the broadcast channel is associated with the first sequence due to one or more of the following: The synchronization signal implicitly defines time and frequency resources for demodulation of the broadcast channel ; And using the synchronization signal as one of the broadcast channels to demodulate a reference signal. The method of claim 1, wherein the broadcast channel is associated with the first sequence due to one or more of: using the first index element to derive the demodulation reference signal of the broadcast channel; and using The first sequence derives a channel configuration of one of the broadcast channels. The method of claim 1, wherein the broadcast channel includes a physical broadcast channel and the second index element includes a plurality of explicit bits included in a main information block on the physical broadcast channel. A method as claimed in item 1, comprising decoding the broadcast channel using the determined first index element. The method of claim 1, wherein the system information includes system information of a cell associated with the network node. The method of claim 1, wherein the system information includes system information of one of a plurality of beams associated with the network node. The method of claim 1, wherein the system information includes information about a target cell to which the wireless device is to be delivered. A method in a network node (115), comprising: defining (504) system information for one or more aspects of wireless communication between the network node and a wireless device (110); Transmitting (508) a sequence to the wireless device, the first sequence enabling the wireless device to determine a first index element based on the first sequence; and transmitting (512) a broadcast channel associated with the first sequence to For the wireless device, the broadcast channel enables the wireless device to determine a second index element based on the information on the broadcast channel, wherein the first index element and the second index element enable the wireless device to obtain indication of the defined system information One of the index values. The method of claim 14, wherein the index value is a function of the first index element and the second index element. The method of claim 15, wherein the function of the first index element and the second index element is a series of one of the first index element and the second index element. The method of claim 14, wherein transmitting the first sequence includes transmitting a synchronization signal including one of the first sequence. The method of claim 17, wherein the first index element includes a plurality of bits that can be determined by reading the first sequence included in the synchronization signal. The method of claim 17, wherein the broadcast channel is associated with the first sequence due to one or more of the following: The synchronization signal implicitly defines time and frequency resources for demodulation of the broadcast channel ; And using the synchronization signal as one of the broadcast channels to demodulate a reference signal. The method of claim 14, wherein the broadcast channel is associated with the first sequence due to one or more of: using the first index element to derive the demodulation reference signal of the broadcast channel; and using The first sequence derives a channel configuration of one of the broadcast channels. The method of claim 14, wherein the broadcast channel includes a physical broadcast channel, and the second index element includes a plurality of explicit bits included in a main information block on the physical broadcast channel. The method of claim 14, wherein the system information includes system information of a cell associated with the network node. The method of claim 14, wherein the system information includes system information of one of a plurality of beams associated with the network node. The method of claim 14, wherein the system information includes information about a target cell to which the wireless device is to be delivered. A wireless device (110) includes: a receiver (710, 810); and a processing circuit (715, 820) coupled to the receiver, the processing circuit is configured to: from the network via the receiver The road node (115) receives (404) one or more transmissions (125a, 125b), the one or more transmissions including a first sequence and a broadcast channel associated with the first sequence; and determining based on the first sequence (408) a first index element; determining (412) a second index element based on the information on the broadcast channel; obtaining (416) an index value based on the first index element and the second index element; and using the The obtained index value determines (420) system information. The wireless device of claim 25, wherein the processing circuit is configured to use the determined system information to access a network (300) associated with the network node. The wireless device of claim 25, wherein the processing circuit configured to obtain an index value includes a processing circuit configured to perform the following: derive the index value, wherein the derived index value is the first index element And one of the functions of the second index element. The wireless device of claim 27, wherein the function of the first index element and the second index element is a series of one of the first index element and the second index element. The wireless device of claim 25, wherein the first sequence is included in a synchronization signal. The wireless device of claim 29, wherein: the first index element includes a plurality of bits; and the processing circuit configured to determine the first index element includes a circuit configured to read a signal included in the synchronization signal The first sequence of processing circuits. The wireless device of claim 29, wherein the broadcast channel is associated with the first sequence due to one or more of the following: The synchronization signal implicitly defines a time and frequency for demodulation of the broadcast channel Resources; and demodulating a reference signal using the synchronization signal as one of the broadcast channels. The wireless device of claim 25, wherein the broadcast channel is associated with the first sequence due to one or more of: using the first index element to derive the demodulation reference signal of the broadcast channel; and The first sequence is used to derive a channel configuration of one of the broadcast channels. The wireless device of claim 25, wherein the broadcast channel includes a physical broadcast channel, and the second index element includes a plurality of explicit bits included in a main information block on the physical broadcast channel. The wireless device of claim 25, wherein the processing circuit is configured to decode the broadcast channel using the determined first index element. The wireless device of claim 25, wherein the system information includes system information of a cell associated with the network node. The wireless device of claim 25, wherein the system information includes system information of one of a plurality of beams associated with the network node. For example, the wireless device of claim 25, wherein the system information includes information about a target cell to which the wireless device is to be delivered. A network node (115) includes: a transmitter (910); and a processing circuit (920) coupled to the transmitter, the processing circuit is configured to: for the network node and a wireless device ( 110) One or more aspects of wireless communication between (504) system information are defined; a first sequence is transmitted (508) to the wireless device via the transmitter, the first sequence enabling the wireless device to be based on the The first sequence determines a first index element; and transmits (512) a broadcast channel associated with the first sequence to the wireless device via the transmitter, the broadcast channel enabling the wireless device to be based on the broadcast channel. The information determines a second index element, wherein the first index element and the second index element enable the wireless device to obtain an index value indicating the defined system information. For example, the network node of item 38, wherein the index value is a function of the first index element and the second index element. For example, the network node of item 39, wherein the function of the first index element and the second index element is a series of one of the first index element and the second index element. The network node of claim 38, wherein the processing circuit configured to transmit the first sequence includes a processing circuit configured to transmit a synchronization signal including the first sequence. For example, the network node of claim 41, wherein the first index element includes a plurality of bits that can be determined by reading the first sequence included in the synchronization signal. If the network node of claim 41, wherein the broadcast channel is associated with the first sequence due to one or more of the following: the synchronization signal implicitly defines a time for demodulation of the broadcast channel and Frequency resources; and demodulating a reference signal using the synchronization signal as one of the broadcast channels. If the network node of claim 38, wherein the broadcast channel is associated with the first sequence due to one or more of the following: using the first index element to derive the demodulation reference signal of the broadcast channel; And using the first sequence to derive a channel configuration of the broadcast channel. For example, the network node of claim 38, wherein the broadcast channel includes a physical broadcast channel, and the second index element includes a plurality of explicit bits included in a main information block on the physical broadcast channel. For example, the network node of item 38, wherein the system information includes system information of a cell associated with the network node. For example, the network node of item 38, wherein the system information includes system information of one of a plurality of beams associated with the network node. If the network node of item 38 is requested, the system information includes information about a target cell to which the wireless device is to be delivered.