WO2018111793A1 - Mise en attente dans le contexte de la capacité de communication de dispositif à dispositif dans un dispositif sans fil - Google Patents

Mise en attente dans le contexte de la capacité de communication de dispositif à dispositif dans un dispositif sans fil Download PDF

Info

Publication number
WO2018111793A1
WO2018111793A1 PCT/US2017/065681 US2017065681W WO2018111793A1 WO 2018111793 A1 WO2018111793 A1 WO 2018111793A1 US 2017065681 W US2017065681 W US 2017065681W WO 2018111793 A1 WO2018111793 A1 WO 2018111793A1
Authority
WO
WIPO (PCT)
Prior art keywords
wireless device
sim
cell
base station
communication
Prior art date
Application number
PCT/US2017/065681
Other languages
English (en)
Inventor
Soumen Chakraborty
Pravallika VURA
Original Assignee
Intel IP Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intel IP Corporation filed Critical Intel IP Corporation
Publication of WO2018111793A1 publication Critical patent/WO2018111793A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • aspects of the present disclosure relate generally to wireless devices, and more specifically to camping in the context of device-to-device communication capability in a wireless device.
  • Wireless devices refer to devices such as mobile phones, tablets, etc., which are operable as user equipment (UE) according to cellular wireless standards.
  • UE user equipment
  • a wireless device interfaces directly with a base station to communicate with other devices.
  • the communication range of such a base station is said to define the boundaries of a cell, and the wireless device is physically located within the cell to communicate with the base station.
  • Wireless devices are often provided the capability to communicate directly with other wireless devices, without the base station operating as a switching device. Such communication is referred to as device-to-device communication.
  • LTE-D2D standard of 3GPP Release 12 or later, is one standard that specifies the requirements for such device to device communication.
  • a wireless device needs to be camped on a cell for communicating to other devices (in the same or different cells) according to the cellular wireless standards.
  • camping refers to associating with a base station, which thereafter operates as a switching device for communications to and from the wireless device.
  • the base station coordinates the transmission durations of all associated wireless devices by allocating shared wireless resources (e.g., frequency band and time slot).
  • aspects of the present disclosure are directed to camping in the context of device-to-device communication capability in a wireless device.
  • Figure 1 is a block diagram of an exemplary environment in which several aspects of the present disclosure can be implemented.
  • Figure 2 is a flowchart illustrating the manner in which camping is performed in the context of device-to-device communication capability in a wireless device, according to aspects of the present disclosure
  • Figure 3 a block diagram representing an exemplary wireless device in which several aspects of the present disclosure can be implemented.
  • FIG. 4 is a diagram illustrating an exemplary multi-SIM scenario in which one of the SIMs is camped on a suitable cell when another SIM is configured for D2D communication.
  • FIG. 5 is a diagram illustrating an exemplary multi-SIM scenario in which one of the SIMs is camped on an acceptable cell when another SIM is configured for D2D communication.
  • FIG. 6 is an exemplary block diagram illustrating a scenario in which an out-of-coverage SIMs is camped on an acceptable cell when the SIM is also configured for D2D communication.
  • a wireless device identifies multiple base stations within its communication range.
  • the wireless device determines a first base station of the multiple base stations that is allocating resources for device-to-device (D2D) communication between the wireless device and another wireless device.
  • the wireless device camps on a first cell defined by the first base station.
  • D2D device-to-device
  • Figure 1 is a block diagram representing an example environment in which several aspects of the present disclosure can be implemented.
  • the example environment is shown containing only representative devices and systems for illustration. However, real world environments contain more systems/devices.
  • Figure 1 shows base station (BS) 130, 140 and 150, and wireless devices (WD) 120 and 160.
  • BS base station
  • WD wireless devices
  • Each of BS 130, BS 140 and BS 150 is a fixed communications unit of a corresponding mobile network deployed by a cellular network operator and provides the last-mile (or last hop) communications link to wireless devices that are within communications range (i.e., within the coverage area) of the corresponding BS, and that have subscribed to services from the corresponding cellular network operator.
  • BS 130 is shown as deployed by one cellular network operator PLMN-A (Public Land Mobile Network A).
  • PLMN-B Public Land Mobile Network B
  • each of BS 130, BS 140 and BS 150 may be coupled to other devices/systems in the corresponding cellular network infrastructure to enable wireless devices in their coverage range to communicate with devices, with landline communications equipment in a conventional PSTN (Public Switched Telephone Network), public data networks such as the Internet, etc.
  • PSTN Public Switched Telephone Network
  • public data networks such as the Internet
  • the base stations and the wireless devices of Figure 1 may operate according to any of cellular network standards/ specifications for wireless mobile communications such as, for example, GSM (Global System for Mobile Communications), LTE (Long Term Evolution, including frequency division duplex (FDD) and/or time division duplex (TDD) modes, UMTS (Universal Mobile Telecommunications System), CDMA (Code Division Multiple Access), W- CDMA (Wideband CDMA), 5G, etc.
  • GSM Global System for Mobile Communications
  • LTE Long Term Evolution, including frequency division duplex (FDD) and/or time division duplex (TDD) modes
  • UMTS Universal Mobile Telecommunications System
  • CDMA Code Division Multiple Access
  • W- CDMA Wideband CDMA
  • 5G etc.
  • a BS In the context of LTE (Long Term Evolution), a BS is referred to as an eNodeB.
  • the term 'base station' as used herein covers base stations as well as eNodeBs. Further, although noted as covering corresponding normal cell areas, the base stations of Figure 1 can also be designed to cover a much smaller area such as, for example, a macrocell, microcell or a femtocell. Macro/micro/femtocells are special cellular base stations (operating over smaller cell areas than normal cells) that are often deployed in small areas to add extra cell capacity. For example, such small cells can be deployed temporarily during sporting events and other occasions where a large number of cell phone users are expected to be concentrated in one spot.
  • Wireless devices 120 and 160 represent devices such as mobile phones, tablets, etc., and may be used for wireless communication such as voice calls, data services such as web browsing, receiving and sending emails, etc.
  • a wireless device located within the boundaries of a geographical area termed a 'cell' served by a base station of a mobile network, interfaces with the base station, which provides the corresponding user the facility of voice and data based services.
  • the wireless device is said to 'be camped' on the cell covered by the base station.
  • the user is referred to as a subscriber, and generally has a unique identity/ account with the mobile network operator.
  • wireless device 160 is assumed to be camped on the cell covered by BS 150. Although, wireless device 160 is assumed herein to be a single-SIM device, wireless device 160 can also be a multi-SIM device. For example, if wireless device 160 is a dual-SIM device, one SIM is camped on the cell corresponding to BS 150, while the other SIM can be camped on a cell corresponding to another base station, not shown.
  • BS 150 supports device-to-device (D2) mode of operation between wireless device 160 and another wireless device (e.g., wireless device 120) as specified in section 5.10 (Sidelink) of Release 13 of 3GPP (3rd Generation Partnership Project) technical specification document TS 36.331 V13.1.0 (2016-03) .
  • D2D mode a pair of wireless devices can communicate with each other (such communication path termed a sidelink) without the switching action of a base station for delivering individual information packets.
  • the resources e.g., frequency bands, time slots
  • BS 150 is therefore capable of allocating resources for D2D communication between wireless device 160 and another wireless device such as wireless device 120.
  • Wireless device 120 may be a single-SIM or a multi-SIM device, and needs to select corresponding cell(s) to camp the SIM(s) on for accessing network services. Wireless device 120 also needs to access D2D communication service for direct communication with wireless device 160. The manner in which wireless device 120 selects a cell to camp for one or more SIMs in wireless device 120, when D2D communication is desired for a SIM in wireless device 120, is described next with respect to a flowchart.
  • FIG. 2 is a flowchart illustrating the manner in which camping is performed in the context of device-to-device communication capability in a wireless device, according to aspects of the present disclosure.
  • the flowchart is described with respect to wireless device 120 of Figure 1, merely for illustration. However, various features described herein can be implemented in other environments and using other components as well, as will be apparent to one skilled in the relevant arts by reading the disclosure provided herein.
  • the flowchart starts in step 201, in which control passes immediately to step 210.
  • wireless device 120 identifies cells that cover the location of wireless device 120.
  • wireless device 120 may search for carrier signal power in various frequency bands allocated for wireless communication by the corresponding standard (e.g., LTE).
  • the presence of carrier signal power from a base station above a threshold indicates that the coverage area of the cell corresponding to the base station covers the location of the wireless device.
  • wireless device 120 identifies the presence of BS 130, BS 140 and BS 150 within its communication range.
  • wireless device 120 may also identify (from signals received from the base stations) the corresponding cellular network operator (e.g., whether PLMN-A, PLMN-B etc.) of the base station. Control then passes to step 230.
  • wireless device 120 checks if any of the base stations (identified in step 210) has the current role of allocating resources for D2D communication between wireless device 120 and another wireless device. Thus, wireless device 120 checks whether there is a D2D communication session established with another wireless device, and the specific base station allocating the resources (i.e., time slot and frequency band) for the D2D communication. In one example embodiment described below, wireless device 120 maintains internal state information indicating the current active D2D sessions for any SIM, and the specific base stations which are allocating the resources for such D2D sessions. The state information is examined to determine the specific base station which has the current role of allocating resources for D2Dcommunication in step 230. If wireless device 120 finds such a base station, control passes to step 240. If wireless device 120 does not find any such base station, control passes to step 260.
  • the specific base station i.e., time slot and frequency band
  • step 240 wireless device 120 camps (a SIM) on the cell corresponding to the base station identified in step 230. Control then passes to step 299, in which the flowchart ends.
  • wireless device 120 camps (a SIM) on any one of the identified cells. Which of the identified cells wireless device 120 picks for camping may be based on other considerations such as, for example, signal strength of the corresponding base station as received at wireless device 120, whether the base station is deployed by the operator that the SIM is configured for, etc. Control then passes to step 299, in which the flowchart ends.
  • wireless device 120 By camping on a cell currently allocating resources for D2D communications (if such a cell is available and identified), wireless device 120 can obtain several benefits as illustrated below with respect to example scenarios. However, a description of the implementation details of wireless device 120 according to an aspect of the present disclosure is provided next.
  • FIG. 3 is a block diagram representing an example wireless device in which several aspects of the present disclosure can be implemented.
  • Wireless device 120 is shown containing processing circuitry or block 310, non-volatile memory 320, input/output (I/O) block 330, random access memory (RAM) 340, real-time clock (RTC) 350, SIM1 module 360 A, SIM2 module 360B, transmit (Tx) block 370, receive (Rx) block 380, switch 390, and antenna 395.
  • Some or all units of wireless device 120 may be powered by a battery (not shown).
  • wireless device 120 is mains-powered and comprises corresponding components such as regulators, filters, etc.
  • wireless device 120 may contain more or fewer blocks depending on specific requirements.
  • SIMl and SIM2 share a same receiver (Rx Block 380) and a same transmitter (Tx Block 370).
  • wireless device 120 may contain other receivers and transmitters also. When such additional transmitters and receivers are present, one set of transmitter and receiver may be dedicated for use by one SIM, while another set of transmitter and receiver may be dedicated for use by the second SIM.
  • processing block (or circuitry) 310 non-volatile memory 320, input/output (I/O) block 330, random access memory (RAM) 340, real-time clock (RTC) 350, Tx block 370 and Rx block 380 may be implemented in integrated circuit (IC) form.
  • I/O input/output
  • RAM random access memory
  • RTC real-time clock
  • Tx block 370 and Rx block 380 may be implemented in integrated circuit (IC) form.
  • SIM module 360A and SIM2 module 360B are designed to identify the specific subscribers and related parameters to facilitate the subscriber to access various services provided via the wireless communication network.
  • each module contains a physical holder (into which a SIM card (SIM), such as SIMl or SIM2, can be inserted) and electrical/electronic circuits which together retrieve various data parameters stored on the inserted SIM cards.
  • SIM card may provide the international mobile subscriber identity (IMSI) number (also the phone number) used by a network operator to identify and authenticate a subscriber.
  • IMSI international mobile subscriber identity
  • the SIM is 'inserted' into such holder before wireless device 120 can access the services provided by the network operator for the subscriber configured on the SIM.
  • a SIM may store address book/telephone numbers of subscribers, security keys, temporary information related to the local network, a list of the services provided by the network operator, etc.
  • 'virtual SIMs' can be used instead of physical SIM cards, and each SIM module may accordingly be implemented to support virtual SIMs.
  • a physical SIM may be supported in combination with one or more virtual SIMs within the wireless device. The modules may be implemented to support such alternative embodiments as well.
  • Processing block 310 may read the IMSI number, security keys etc., in transmitting and receiving voice/data via Tx block 370 and Rx block 380 respectively.
  • SIMl and SIM2 may subscribe to data and voice services according to one of several radio access technologies such as GSM, LTE (FDD as well as TDD), CDMA, WCDMA, 5G, etc., as also noted above.
  • the type of radio access technology available to the two SIMs can be the same (e.g., LTE on both SIMs), or different (e.g., LTE on one SIM and 3G on the other SIM, LTE on one SIM and CDMA on the other SIM, etc.).
  • RTC 350 operates as a clock, and provides the 'current' time to processing block 310. Additionally, RTC 350 may internally contain one or more timers.
  • I/O block 330 provides interfaces for user interaction with wireless device 120, and includes input devices and output devices.
  • the input devices may include a keypad and a pointing device (e.g., touch-pad).
  • Output devices may include a display with touch- sensitive screen.
  • Antenna 395 operates to receive from, and transmit to, a wireless medium, corresponding wireless signals (representing voice, data, etc.) according to one or more standards such as LTE.
  • Switch 390 may be controlled by processing block 310 (connection not shown) to connect antenna 395 to one of blocks 370 and 380 as desired, depending on whether transmission or reception of wireless signals is required.
  • Switch 390, antenna 395 and the corresponding connections of Figure 3 are shown merely by way of illustration. Instead of a single antenna 395, separate antennas, one for transmission and another for reception of wireless signals, can also be used.
  • Tx block 370 receives, from processing block 310, digital signals representing information (voice, data, etc.) to be transmitted on a wireless medium (e.g., according to the corresponding standards/specifications), generates a modulated radio frequency (RF) signal (according to the standard), and transmits the RF signal via switch 390 and antenna 395.
  • Tx block 370 may contain RF circuitry (mixers/up-converters, local oscillators, filters, power amplifier, etc.) as well as baseband circuitry for modulating a carrier with the baseband information signal.
  • Tx block 370 may contain only the RF circuitry, with processing block 310 performing the modulation and other baseband operations (in conjunction with the RF circuitry).
  • Rx block 380 represents a receiver that receives a wireless (RF) signal bearing voice/data and/or control information via switch 390, and antenna 395, demodulates the RF signal, and provides the extracted voice/data or control information to processing block 310.
  • Rx block 380 may contain RF circuitry (front-end filter, low-noise amplifier, mixer/down-converter, filters) as well as baseband processing circuitry for demodulating the down-converted signal.
  • Rx block 380 (the receive chain) may contain only the RF circuitry, with processing block 310 performing the baseband operations in conjunction with the RF circuitry.
  • Non-volatile memory 320 is a non-transitory machine readable medium, and stores instructions, which when executed by processing block 310, causes wireless device 120 to operate as described herein.
  • the instructions enable wireless device 120 to operate as described with respect to the flowchart of Figure 2.
  • the instructions may either be executed directly from non-volatile memory 320 or be copied to RAM 340 for execution.
  • RAM 340 is a volatile random access memory, and may be used for storing instructions and data.
  • RAM 340 may store state information indicating the presently active D2D communications provided for SIMs of wireless device 120.
  • the state information would indicate that SIMl is currently engaged in D2D communication with wireless device 160 and that base station 580 is allocating the requisite resources on the shared wireless medium for such D2D communication.
  • the state information can be stored in other memories (e.g., in registers) in alternative embodiments.
  • the state information thus maintained is examined to identify any base stations currently allocating resources for D2D communications between wireless device 120 and another wireless device.
  • RAM 340 and non-volatile memory 320 (which may be implemented in the form of readonly memory/ROM/Flash) constitute computer program products or machine (or computer) readable medium, which are means for providing instructions to processing block 310.
  • Processing block 310 may retrieve the instructions, and execute the instructions to provide several features of the present disclosure. At least some portion of RAM 340 may be used to serve as a shared memory for the passing of data between applications executing for SIM1 and SIM2.
  • Processing block 310 may contain multiple processing units internally, with each processing unit potentially being designed for a specific task.
  • processing block 310 may be implemented as multiple separate processing cores, one each for handling operations required for each of multiple SIMs (e.g., SIM1 and SIM2).
  • processing block 310 may represent a single processing unit executing multiple execution threads in software, each execution thread for handling operations required for a corresponding one of multiple SIMs.
  • SIM e.g., SIM1 or SIM2
  • processing block 310 executes instructions stored in non-volatile memory 350 or RAM 340 to enable wireless device 120 to operate according to several aspects of the present disclosure, described in detail herein.
  • FIG 4 illustrates a scenario in which SIM1 (of module 360A) of WD 120 is configured for D2D communication, and SIM2 (360B) is in the RRC (Radio Resource Control) Idle State.
  • RRC idle state implies that SIM2 has not established a connection with a base station deployed by the network operator that SIM2 is configured for.
  • a cell corresponding to a base station deployed by network operator that a SIM is configured to subscribe to for services such as voice and data is termed a suitable cell.
  • WD 120 thus needs to select a cell to camp SIM2 on.
  • the network operator for which SIM2 is configured is assumed to be PLMN-B.
  • WD 120 is assumed to have camped SIM1 on a suitable cell (BS 130) deployed by the network operator (PLMN-A) that SIM1 is configured for, and the corresponding connection is shown by arrow 410.
  • the set of uplink and downlink frequency bands for connection 410 is represented by Fl.
  • WD 160 may be a single-SIM or multi-SIM device, and is assumed to have camped a SIM on a suitable cell (BS 150) deployed by the network operator (PLMN-B) that the SIM is configured for, and the corresponding connection is shown by arrow 460.
  • the set of uplink and downlink frequency bands for connection 460 is represented by F3.
  • SIM1 of WD 120 is configured for D2D communication with another wireless device, assumed herein to be WD 160. Prior to D2D communication with WD 160, WD 120 would have discovered the presence of WD 160, and obtained the necessary resources for D2D communication with WD 160. The obtaining of the resources for D2D communication may be periodically performed, and may thus be a continuing process.
  • the discovery is enabled by BS 130, which transmits SIBs (System Information Blocks) that contain relevant information that enable SIM1 to access a cell, perform cell re-selection, D2D communication, etc.
  • SIBs System Information Blocks
  • SIB 19 contains a list of frequencies (along with PLMN IDs, such as PLMN-B, PLMN-C, etc.) on which WD 120 may monitor for the presence of another wireless device with which D2D communication can be performed.
  • PLMN IDs such as PLMN-B, PLMN-C, etc.
  • WD 120 based on the information in SIB 19 transmitted by BS 130, WD 120 discovers WD 160 and requests BS 150 for resources to enable D2D communication with WD 160.
  • the resources include frequency band for two-way communication with WD 160, and both transmit and receive are performed on the same band as the uplink band in F3.
  • the D2D communication between SIM1 and WD 160 is indicated by arrow 450.
  • WD 120 can choose either of BS 140 or BS 150 (both of operator PLMN-B), each of which is assumed to be within communication range of WD 120 (step 210 of the flowchart of Figure 2).
  • the set of uplink and downlink frequency bands employed by BS 140 is denoted as F2.
  • WD 120 camps SIM2 on BS 150 (step 230 and 240), rather than BS140, even if BS 140 provides a stronger carrier signal than BS 150), and the connection is indicated as 430 in Figure 4.
  • WD 120 (in the form of processing block 310) stores information regarding the camping status of SIM1 as well as the status of D2D communication of SIM1 in RAM 340 or non-volatile memory 320. Therefore, when processing block 310 needs to make a decision on which of multiple available suitable cells for SIM2 to camp on, processing block 310 inspects the stored status for SIM1, and decides based on the stored status information.
  • WD 120 needs to receive and decode SIBs from BS 150 alone for both camping of SIM2 on the cell corresponding to BS 150 (including subsequent operations to communicate with other devices or, in general, access services) as well as for obtaining resources for D2D communication of SIMl with WD 160.
  • WD 120 camped SIM2 on BS 140 instead, WD 120 would have needed to receive and process SIBs from both BS 140 (for SIM2) and BS 150 (for D2D communication using SIMl), which would have been wasteful of power.
  • WD 120 needs to multiplex a shared receiver and transmitter only between Fl and F2, rather than Fl, F2 and F3. Therefore there are fewer number of times that a shared transmitter and receiver are switched between frequencies, thereby potentially improving throughput for the corresponding operations.
  • WD 120 While the description above with respect to Figure 4 has been provided with respect to selection of a cell for SIM2, according to an aspect of the present disclosure, a similar approach is used when a cell has to be reselected for SIM2.
  • WD 120 In the absence of BS 150 and absence of D2D communication by SIMl, WD 120 camps SIM2 on the cell corresponding to BS 140, or any other suitable cell if present (step 260 of the flowchart of Figure 2). Assuming multiple other suitable cells are present (in addition to cell corresponding to BS 140), WD 120 may camp SIM2 on that suitable cell that has the strongest signal (as received at WD 120).
  • FIG. 5 Another multi-SIM scenario in which aspects of the present disclosure operate is illustrated next with respect to Figure 5.
  • the details of Figure 5 are identical to those of Figure 4 except for the following differences.
  • BS 570 and BS 580 are shown in place of BS 140 and BS 150 respectively of Figure 4.
  • the set of uplink and downlink frequency bands employed by BS 570 and BS 580 are respectively denoted by F4 and F5.
  • F4 and F5 are different from F2 and F3 of Figure 4.
  • BS 570 and BS 580 are deployed by a network operator (PLMN-C) for which SIM2 of WD 120 is not configured for.
  • WD 120 camps SIMl on the cell corresponding to BS 130.
  • SIMl is in D2D communication with WD 160, which is camped on BS 580.
  • PLMN-C network operator
  • Arrow 550 represents D2D communication path between SIMl of WD 120 and WD 160.
  • Arrow 560 represents the communication path between WD 160 and BS 580.
  • Arrow 540 represents the communication path between SIMl of WD 120 and BS 580 for obtaining resources for D2D communication with WD 160.
  • Figure 5 represents a scenario in which WD 120 is unable to find a suitable cell to camp SIM2 on (termed as an out-of-coverage situation), and therefore wishes to camp SIM2 on an acceptable cell to access limited services (e.g., emergency calls, disaster alerts, etc.).
  • limited services e.g., emergency calls, disaster alerts, etc.
  • BS 570 and BS 580 are assumed to be within communication range of WD 120, and therefore WD 120 can camp SIM2 for access to limited services on either BS 570 or BS 580.
  • WD 120 camps SIM2 on BS 580 for limited services, since SIM1 has already established a connection (540) with BS 580 for requesting resources for D2D communications with WD 160.
  • camping SIM2 on BS 570 via connection 520 would be wasteful in terms of power in WD 120.
  • the approach illustrated with respect to Figure 5 provides the same benefits as noted above with respect to Figure 4.
  • FIG. 6 is a diagram illustrating a camping approach when WD 120 needs to support only one SIM (assumed to be SIM1), although having the capability to support two SIMs.
  • WD 120 is assumed to have camped SIM1 on the cell corresponding to BS 130, and also to be currently communicating with WD 160 using D2D communication.
  • WD 120 is assumed to have obtained the resources necessary for the D2D communication from BS 580 via connection indicated by arrow 640.
  • the connection between WD 120 and WD 160 is denoted by arrow 650 and uses the uplink frequency band of BS 580.
  • the set of uplink and downlink frequencies of BS 580 are denoted by F5.
  • WD 160 is camped on BS 580, and the connection is indicated by arrow 660.
  • references throughout this specification to "one aspect of the present disclosure”, “an aspect of the present disclosure”, or similar language means that a particular feature, structure, or characteristic described in connection with the aspect of the present disclosure is included in at least one aspect of the present disclosure of the present invention.
  • appearances of the phrases “in one aspect of the present disclosure”, “in an aspect of the present disclosure” and similar language throughout this specification may, but do not necessarily, all refer to the same aspect of the present disclosure.
  • the following examples pertain to above or further embodiments.
  • Example 1 corresponds to a wireless device containing a processing block which identifies base stations in communication range with the wireless device.
  • the processing block operates to camp the wireless device on a first cell of one (first base station) of the base stations which allocates resources for D2D communication between the wireless device and another wireless device.
  • Example 2 corresponds to the wireless device of example 1 in which the processing block operates to camp the wireless device on the first cell even though there is higher signal power from another base station in view of the first base station allocating resources for the D2D communication.
  • Example 3 correspond to any of the wireless devices of example 1 and 2, wherein the wireless device contains a first holder for housing a first subscriber identity module (SIM); and a second holder for housing a second SIM, wherein the D2D communication is provided between the first SIM and the another wireless device, and wherein the second SIM is camped on the first cell defined by the first base station.
  • SIM subscriber identity module
  • SIM subscriber identity module
  • Example 4 corresponds to any of the wireless devices of examples 1-3, wherein the first SIM is camped on a second cell as a suitable cell prior to the processing block identifying the base stations, wherein the processing block is further configured to receive, from the second cell, using the first SIM, a first set of System Information Blocks (SIB) that specify that the first base station supports D2D communication using a first frequency band, wherein the wireless device communicates on the first frequency band with the first base station to obtain a second set of SIBs specifying resources for the first SIM to communicate with the another wireless device, wherein the second set of SIBs also specify resources for the second SIM to access services via the first base station.
  • SIB System Information Blocks
  • Example 5 corresponds to any of the wireless devices of examples 1-4, wherein the first cell is a suitable cell with respect to the second SIM.
  • Example 6 corresponds to any of the wireless devices of examples 1-4, wherein the first cell is an acceptable cell with respect to the second SIM.
  • Example 7 corresponds to any of the wireless devices of examples 1-2, wherein the wireless device contains only a single SIM, wherein the processing block is further configured to find that the single SIM is unable to communicate with a second base station defining a previously camped cell, wherein the single SIM is in D2D (Device-to-Device) communication with the another wireless device prior to the finding, wherein the processing block is further configured to camp the single SIM on the first cell in response to finding that the single SIM is unable to communicate with the second base station defining the previously camped cell.
  • D2D Device-to-Device
  • Example 8 corresponds to any of the wireless devices of examples 1-2 and 7, wherein previously camped cell is a suitable cell, and the first cell is an acceptable cell.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un dispositif sans fil qui identifie multiples stations de base dans sa plage de communication. Le dispositif sans fil détermine une première station de base des multiples stations de base qui attribue des ressources pour une communication de dispositif à dispositif (D2D) avec un autre dispositif sans fil. Le dispositif sans fil est en attente sur une première cellule définie par la première station de base. Dans un mode de réalisation, le dispositif sans fil contient multiples modules d'identité d'abonné (SIM), et l'opération de mise en attente est effectuée pour un SIM tandis que la communication D2D est détectée pour un autre SIM.
PCT/US2017/065681 2016-12-14 2017-12-12 Mise en attente dans le contexte de la capacité de communication de dispositif à dispositif dans un dispositif sans fil WO2018111793A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201641042648 2016-12-14
IN201641042648 2016-12-14

Publications (1)

Publication Number Publication Date
WO2018111793A1 true WO2018111793A1 (fr) 2018-06-21

Family

ID=62559114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/065681 WO2018111793A1 (fr) 2016-12-14 2017-12-12 Mise en attente dans le contexte de la capacité de communication de dispositif à dispositif dans un dispositif sans fil

Country Status (1)

Country Link
WO (1) WO2018111793A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112788673A (zh) * 2019-11-07 2021-05-11 华为技术有限公司 一种通信方法、装置及设备
CN114095963A (zh) * 2021-11-17 2022-02-25 许昌许继软件技术有限公司 一种5g端到端链路冗余的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140378084A1 (en) * 2011-12-12 2014-12-25 St-Ericsson Sa Limited Service State Control
US20150327201A1 (en) * 2014-05-08 2015-11-12 Intel IP Corporation Systems, methods, and devices for synchronization source selection for device-to-device communication
US20150341946A1 (en) * 2014-05-21 2015-11-26 Pismo Labs Technology Limited Selecting base station at a mutli-sim communication device
US20160212665A1 (en) * 2013-11-26 2016-07-21 Kyocera Corporation Mobile communication system, user terminal, and base station
US20160295550A1 (en) * 2015-04-06 2016-10-06 Samsung Electronics Co, Ltd. Method for optimizing cell selection in a dual sim dual standby device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140378084A1 (en) * 2011-12-12 2014-12-25 St-Ericsson Sa Limited Service State Control
US20160212665A1 (en) * 2013-11-26 2016-07-21 Kyocera Corporation Mobile communication system, user terminal, and base station
US20150327201A1 (en) * 2014-05-08 2015-11-12 Intel IP Corporation Systems, methods, and devices for synchronization source selection for device-to-device communication
US20150341946A1 (en) * 2014-05-21 2015-11-26 Pismo Labs Technology Limited Selecting base station at a mutli-sim communication device
US20160295550A1 (en) * 2015-04-06 2016-10-06 Samsung Electronics Co, Ltd. Method for optimizing cell selection in a dual sim dual standby device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112788673A (zh) * 2019-11-07 2021-05-11 华为技术有限公司 一种通信方法、装置及设备
CN114095963A (zh) * 2021-11-17 2022-02-25 许昌许继软件技术有限公司 一种5g端到端链路冗余的方法

Similar Documents

Publication Publication Date Title
US11356842B2 (en) Throughput and radio resource utilization for user equipment having multiple subscriber identity modules
US10433368B2 (en) Methods for re-synchronizing a communication mode with a peer device and communications apparatus utilizing the same
US10827376B2 (en) Processing requests for measurement of signal quality at the location of a user equipment with multiple subscriptions
US10075891B2 (en) Camping approach in multi-SIM user equipment when present in coverage holes of respective network operators
US20170346746A1 (en) Apparatus, Systems and Methods for Network Selection with Priority Class
JP2012525029A (ja) 通信に対する部分的サポートによるアクセス制御
US11540185B2 (en) ULI cell selection prioritization
EP4124165A1 (fr) Amélioration du débit et de l'utilisation des ressources radio pour les équipements d'utilisateur comportant plusieurs modules d'identité d'abonné
CN113596940B (zh) 一种小区选择或重选方法及装置、终端
CN113615314A (zh) 一种中继选择方法及装置、终端设备
EP3772865A1 (fr) Balayage amélioré de bandes de fréquences radio
CN113207153B (zh) 一种控制终端移动性的方法及装置、终端
WO2018111793A1 (fr) Mise en attente dans le contexte de la capacité de communication de dispositif à dispositif dans un dispositif sans fil
CN112702777A (zh) 在nsa模式下执行移动过程的方法和通信装置
CN113661732A (zh) 一种资源协调方法及装置、终端设备
CN113015230B (zh) 无线通信方法和终端设备
CN113906825A (zh) 一种资源共享方法及装置、终端、网络设备
CN113286334A (zh) Uli小区选择优先化
CN115023979A (zh) 切片选择的方法和终端设备
CN114363976A (zh) 无线通信方法和终端设备
WO2018111790A1 (fr) Opérations de communication dans des dispositifs sans fil multi-sim
CN115696509A (zh) 无线通信的方法及设备
CN115299109A (zh) 一种配置信息的确定方法及装置、终端设备
CN116601979A (zh) 一种寻呼指示方法及装置、终端设备、网络设备
CN115968565A (zh) 用于无线通信装置的方法、装置、存储介质和芯片系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17881092

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17881092

Country of ref document: EP

Kind code of ref document: A1