RU2574589C1 - Reporting interference in "device-to-device" communication - Google Patents

Abstract

FIELD: physics, communication.

SUBSTANCE: invention relates to wireless communication networks in which wireless devices can be configured to establish direct communication with other wireless devices of the "device-to-device" (D2D) type. A D2D group identifier may be included in wireless transmissions within D2D groups. The process of suppressing D2D interference may be initiated upon detecting a D2D group identifier by a wireless communication device which is not part of the D2D group.

EFFECT: high communication efficiency.

32 cl, 15 dwg, 2 tbl

Description

FIELD OF THE INVENTION

The present invention relates generally to wireless communication networks and, more specifically, to notification of interference in the communication device-to-device.

State of the art

The description of the prior art is presented here with the aim of representing the context of the invention. The work of the inventors described in this section, as well as aspects of the description that cannot be qualified other than the prior art at the time of filing, are neither directly nor indirectly recognized as prior art when considering the present invention. Unless otherwise indicated, the approaches set forth in this section are not prior art to the claims of the present invention and are not considered prior art by inclusion in this section.

Wireless devices can communicate with each other in a wireless communication environment. Some wireless devices may be configured to communicate directly with other wireless devices, for example, through device-to-device ("D2D") communications. Several D2D communication devices can work as a group and form a communication network.

When two or more D2D communication groups are in close proximity to each other, the intra-group communication in one D2D communication group may be disturbed by interference caused by the implementation of intra-group communication in another D2D communication group. Existing D2D communication devices may not be able to identify the source of interference and cannot initiate the interference suppression process.

Brief Description of the Drawings

Embodiments will be readily apparent from the following detailed description in conjunction with the accompanying drawings. To facilitate this description, the same reference numerals denote the same structural elements. Embodiments are illustrated by way of example and are not considered as limitations on the accompanying drawings.

1 is a diagram of an exemplary wireless communication environment in accordance with various embodiments.

FIG. 2 is a block diagram of an example D2D wireless communication device configured for D2D interference notification in accordance with various embodiments.

FIG. 3A-3C illustrate various formats of communication packets D2D in accordance with various embodiments.

FIG. 4 is a block diagram of an example base station configured for D2D interference notification in accordance with various embodiments.

FIG. 5 is a flowchart illustrating an example of D2D interference notification and an interference suppression process when two D2D communication groups are served by the same base station, in accordance with various embodiments.

FIG. 6 is a flowchart illustrating an example of D2D interference notification and an interference suppression process when two D2D communication groups are served by different base stations in accordance with various embodiments.

FIG. 7 shows a flowchart of an example interference notification process D2D in accordance with various embodiments.

FIG. 8 is a flowchart of an example of initiating an interference suppression process when performing D2D communications in accordance with various embodiments.

FIG. 9 is a flowchart of an exemplary interference suppression process D2D in accordance with various embodiments.

FIG. 10 is a flowchart of an exemplary process for incorporating a group identifier D2D in a wireless transmission D2D in accordance with various embodiments.

FIG. 11 is a flowchart of an example control header configuration process in accordance with various embodiments.

FIG. 12 is a flowchart of an example process for indicating a format of a control header in accordance with various embodiments.

FIG. 13 is a flowchart of an example computer device suitable for implementing the disclosed embodiments in accordance with various embodiments.

Detailed description

The description of embodiments of systems and methods for notification of interference in the implementation of D2D communication. In some embodiments, the first wireless device may belong to the first D2D communication group and may be served by the first base station. The first wireless device may detect a group identifier in a wireless transmission from a second wireless device served by a second base station. The group identifier may represent a second D2D communication group to which the second wireless device belongs, and the second D2D communication group may be different from the first D2D communication group. The first wireless device may transmit the group identifier or the identifier of the second base station to the first base station to notify the first base station of interference from the second D2D communication group.

In the following detailed description, reference is made to the accompanying drawings, which are part of this description, in which like reference numerals indicate like details, showing, by way of illustration, embodiments that may be practiced. It should be understood that other embodiments may be used and structural or logical changes may be made without departing from the scope of the present invention. Thus, the following detailed description should not be construed in a limiting sense, and the scope of the embodiments is determined by the appended claims and their equivalents.

Various operations can be described as many discrete actions or operations, in turn, are most useful for understanding the claimed subject matter. However, the order of description should not be construed as an order which implies that these operations necessarily depend on the given order of presentation. In particular, these operations may not be performed in the order of presentation. The described operations can be performed in an order different from the described embodiment. Various additional operations may be performed and / or the described operations may be omitted in further embodiments.

For the purposes of the present description, the phrase "A and / or B" means (A), (B) or (A and B). For the purposes of the present description, the phrase "A, B and / or C" means (A), (B), (C), (A and B), (A and C), (B and C) or (A, B and C).

This description may use the phrases “in an embodiment” or “in embodiments”, each of which may refer to one or more of the same or different embodiments. In addition, the terms “comprising,” “including,” “having,” and the like, as used in relation to embodiments of the present invention, are synonymous.

As used herein, the terms “module” and / or “logic device” may refer to, be part of, or include a specialized integrated circuit (“ASIC”), an electronic circuit, a processor (general, dedicated, or group) and / or memory (general, dedicated, or group) that execute one or more software or hardware and software programs, combinational logic, and / or other suitable components that provide the required functionality.

The embodiments described herein can be used in various applications, including transmitters and receivers of mobile wireless radio communication systems. Radio systems specifically included in the scope of embodiments include, but are not limited to, network interface cards (NICs), network adapters, base stations, access points (APs), relay nodes, Nodes B, gateways, bridges, hubs and satellite radiotelephones . In addition, radio communication systems within the scope of embodiments may include satellite systems, personal communication systems ("PCS"), two-way radio systems, global positioning systems ("GPS"), bi-directional pagers, personal computers ("PCs"), and related to them peripheral devices, personal digital assistants ("PDAs") and personal computers and others.

Turning now to FIG. 1, an example of a wireless communication environment 100 is shown in accordance with distinguished embodiments. The wireless communication environment 100 may be configured as one or more wireless communication networks, such as a wireless personal area network ("WPAN"), a wireless local area network ("WLAN"), and a wireless metropolitan area network ("WMAN"). Wireless communication environment 100 may include one or more wireless devices, typically as shown, 108, 110, 112, 114, 116, 118, and 120. In some embodiments, wireless devices 108, 110, 112, 114, 116 , 118 and 120 may be configured to communicate with other wireless devices, and may be designated as communication devices for providing device-to-device communications (“D2D”). A D2D communication device may include a mobile station, as defined by the Institute of Electrical and Electronics (IEEE) 802.16e (2005), 802.16m (2009) or subsequent changes, releases or their updates, or a subscriber device, as defined by the Third Partnership Project Generations ("3GPP") Long-Term Development ("LTE") Release 8 (2008), Release 9 (2009), Release 10 (2011) or subsequent changes, releases or their updates. As will be described in more detail below, one or more wireless communication devices 108, 110, 112, 114, 116, 118 and 120 may be configured to implement the present invention to provide D2D interference notification.

Wireless communication devices 108, 110, 112, 114, 116, 118 and 120, which may also be referred to as a user equipment (UE), may be configured to communicate via radio links to one or more base stations, as shown, 122 and 124. Many of the examples described herein may relate to wireless networks that comply with 3GPP for ease of description; However, the subject of the present invention is not limited in this regard, and the described embodiments may be applied to other wireless communication networks that may benefit from the systems and methods described herein. Wireless devices 108, 110, 112, 114, 116, 118, and 120 may also operate in one or more D2D communication groups. As shown in FIG. 1, wireless communication devices 108, 110, and 112 may be included in the D2D of the communication group 102, wireless communication devices 114 and 116 may be included in the D2D of the communication group 104, and wireless communication devices 116, 118 and 120 may be included in the D2D communication group 106. Each D2D communication group (eg, D2D communication groups 102, 104 and 106) may form a wireless communication network between wireless devices in the group. Intra-group communications can be carried out on one or more wireless communication channels (limited, for example, by one or more frequency ranges). In some embodiments, the channel (s) associated with the D2D group can be allocated to this group using a base station serving this group. For example, as shown in FIG. 1, base station 122 can serve a D2D communication group 102 and base station 124 can serve a D2D communication group 104 and 106. Base stations 122 and 124 can be connected to a core network 126 through which an authentication process can be performed and interbase communications.

In some embodiments, base stations 122 and 124 may include or be included in one or more nodes B (also commonly referred to as "developed nodes B", "advanced nodes B", "eNode Bs" or "eNBs" in 3GPP LTE). Wireless devices 108, 110, 112, 114, 116, 118, and 120 may be configured to communicate using a multiple input-multiple output (MIMO) communication circuit. Base stations 122 and 124 may include one or more antennas, one or more radio modules for modulating and / or demodulating signals transmitted or received using the radio interface, and one or more digital modules for processing signals transmitted and received on the radio interface. One or more antennas of wireless communication devices 108, 110, 112, 114, 116, 118 and 120 may be used to simultaneously use radio resources of a plurality of respective carrier components (for example, which may correspond to antennas of base stations 122 and 124) of a wireless communication medium 100. Devices 108, 110, 112, 114, 116, 118, and 120 wireless communications may be configured to communicate using an orthogonal frequency division multiple access (OFDMA) scheme, for example, in a downlink and / or single-carrier frequency division multiple access (SC-FDMA), for example, in the uplink, in some embodiments.

Wireless communications devices 108, 110, 112, 114, 116, 118 and 120 may include wireless electronic devices such as a desktop computer, laptop computer, cell phone, pager, audio and / or video player (e.g., MP3 player or a DVD player), a gaming device, a camcorder, a digital camera, a navigation device (e.g. a GPS device), a wireless peripheral device (e.g. a printer, scanner, headphones, keyboards, a mouse, etc.), a medical device (e.g. a monitor heart rate meter arterial pressure, etc.) and / or other suitable fixed, portable or mobile electronic devices. Although seven user devices are depicted in FIG. 1, wireless communication environment 100 may include more or less user devices.

Wireless communication devices 108, 110, 112, 114, 116, 118, and 120 may employ various modulation techniques such as spectral modulation (eg, code division multiple access and direct spread spectrum (“DS-CDMA”) and / or multiple access frequency division multiplexing ("FH-CDMA")), time division multiplexing ("TDM"), frequency division multiplexing ("FDM"), orthogonal frequency division multiplexing ("OFDM"), multi-modulation carriers ("MDM") and / or other suitable methods s modulation for establishing communications over the wireless links. The embodiments of the systems and methods described herein can be implemented in broadband wireless access networks, including networks operating in accordance with one or more protocols established by 3GPP and their derivatives, WiMAX Forum, IEEE 802.16 standards (for example, IEEE 802.16-2005 changes), the LTE project along with any amendments, updates and / or changes (for example, the advanced LTE project, the Ultra Broadband Mobile Communications ("UMB" project) (also called as "3GPP2"), etc.). Although some of the examples described above related to standards developed by 3GPP, the present invention can easily be applied to many specifications and / or standards developed by other relevant groups and / or standards development organizations (for example, the Association of the largest manufacturers of computer equipment and wireless devices “Wireless Confidence” (“WiFi”), Global Microwave Access Compatibility Forum (“WiMAX”), Infrared Data Association (IrDA), etc.).

Turning now to FIG. 2, an example of a D2D wireless device 200 configured for D2D interference notification is illustrated in accordance with various embodiments. The components of the wireless communication device 200, described in detail below, may be included in any one or more of the wireless communication devices described above with reference to FIG. 1, including any of the devices 108, 110, 112, 114, 116, 118 and 120 wireless communications or any other suitable wireless device. In some embodiments, implementation, the wireless device 200 is a mobile wireless device, such as a PDA, cell phone, tablet computer or laptop computer. In embodiments, as shown in FIG. 2, a wireless communications device 200 is described that is believed to belong to a first D2D communication group that includes one or more other wireless communications devices (eg, as described above with reference to D2D communication groups 102,104 and 106, as shown in FIG. 1).

Wireless communications apparatus 200 may include an antenna 202. Antenna 202 may include one or more directional or omnidirectional antennas, such as symmetric vibrator antennas, unbalanced antennas, microband antennas, loop antennas, microstrip antennas, and / or other types of antennas suitable for receiving radio frequency (RF) or other wireless communication signals. Although only one antenna is shown in FIG. 2, the wireless communications apparatus 200 may include additional antennas.

Wireless device 200 may include a transceiver module 204. An antenna 202 may be connected to a transceiver module 204. The transceiver module 204 may be configured to receive and transmit signals wirelessly to and from other wireless communication devices and / or base stations, such as any of the wireless communication devices and / or base stations described above with reference to FIG. 1. In some embodiments, the transceiver module 204 may receive wireless transmissions from another wireless device in a first D2D communication group, from a wireless device in a second D2D communication group other than the first D2D communication group, from a base station serving wireless device 200 communication or the first D2D communication group (or both), or one or more such transmissions wirelessly.

The wireless device 200 may include a D2D communication module 214. In some embodiments, wireless transmissions received on or transmitted by the transceiver module 204 may be received or transmitted on a channel dedicated to the first D2D communication group, and may be processed using the D2D communication module 214. A dedicated channel may include, as an example, a dedicated set of frequencies. In some embodiments, the wireless device 200 may communicate with other members of the first D2D communication group in accordance with a multiple access protocol (eg, CSMA carrier control multiple access), which is implemented at least partially by the D2D communication module 214 and transceiver module 204.

The wireless device 200 may include a group identifier determining module 206. The group identifier determining module 206 may be connected to the transceiver module 204. In some embodiments, the group identifier determining module 206 may be configured to detect the group identifier in the wireless transmission received by the transceiver module 204. As used herein, a “group identifier” may refer to information that uniquely or uniquely identifies an associated D2D communication group. For example, a group identifier may include an identification name or number associated with a D2D communication group. In some embodiments, the group identifier includes information about one or more characteristics associated with the D2D communication group, such as information about a base station serving the D2D communication group, the number of devices included in the D2D communication group, or location or geographic reference associated with a D2D communication group, for example. The group identifier determining module 206 may further be configured to identify a base station serving the D2D communication group based on the group identifier (for example, using a lookup table or display module, as described in more detail below with reference to the base station identification module 408 of the base station 400 as shown in Fig. 4). In some embodiments, the group identifier determining module 206 may be configured to determine the group identifier in the group identifier field of the wireless transmission control header received by the transceiver module 204. Illustrative embodiments of the control header formats in which a group identifier field may be included are discussed below with reference to tables 1 and 2.

Wireless device 200 may also include an interference measurement module 208. The interference measuring unit 208 may be connected to the group identifier 206 and, in some embodiments, when the group identifier 206 identifies a wireless transmission by the second wireless device, belonging to a second D2D communication group other than the first D2D communication group, be configured to measure the level of interference from a second wireless device. For example, interference measurement module 208 may measure the transmitted power of a wireless signal received by wireless device 200 from another wireless device belonging to another D2D communication group. In some embodiments, the interference measuring unit 208 may not perform the measurement if the group identifier does not correspond to a D2D communication group other than the first D2D communication group (to which the wireless device device 200 belongs), as determined by the group identifier determining module 206. In some embodiments, implementation, the interference measurement module 208 may not be included in the wireless communication device 200. In some such embodiments, determining the identifier of the other D2D communication group by the group identifier determining module 206 may be sufficient for the presence of interference, and thus, additional interference measurements are not performed.

The wireless communications apparatus 200 may also include a base station communications module 210. The base station communication module 210 may be connected to the transceiver module 204 and the interference measurement module 208. In embodiments in which the interference measurement module 208 is not part of the wireless communication device 200, the base station communication module 210 may be connected to the group identifier determining module 206. In some embodiments, the group identifier information determined by the group identifier determining unit 206 may be transmitted to the base station communication module 210 for transmission to the base station serving the wireless communication device 200. In some embodiments, the base station information serving the D2D communication group corresponding to the group identifier identified by the group identifier determining module 206 may be transmitted to the base station communication module 210 for transmission to the base station serving the wireless communication device 200. In some embodiments, the base station communication module 210 may receive, from the base station serving the wireless communication device 200, the identifier of the first communication group D2D. The identifier of the first D2D communication group may be included in the transmitted wireless communication data between devices in the first D2D communication group through the D2D communication module 214. In some embodiments, the communication module 210 of the base station may receive a signal from the base station serving the wireless communication device 200 indicating the format of the control header that will be used in the formation of packets for intra-group D2D communications, as will be described in detail below.

Wireless device 200 may also include a control header generation module 212. The control header generation module 212 may be connected to the base station communication module 210. In some embodiments, the control header generation module 212 may receive the identifier of the first D2D communication group from the base station communication module 210 and may include the identifier in the control header of the wireless messages transmitted by the wireless device 200 to other wireless devices in the first D2D communication group.

Any control header format can be used. In some embodiments, control headers can support carrier control and virtual control by providing reservation time notifications for the control header and subsequent transmissions so that other D2D devices that detect the control header can avoid collisions. In some embodiments, the control headers may support random access to the channel, providing identification of the current session in the local area (eg, sector cell or reduced area). In some embodiments, the control headers may have various sizes and may be delivered using variable packet formats. In some such embodiments, the control header may notify the type of control and data described by the number of bytes allocated for control and data information. In some embodiments, the size of the control header can be selected as the smallest, while at the same time providing information for D2D communication, to minimize overhead and reserve more space for payload data. In some embodiments, the control headers may be unencrypted to be read by all D2D devices (for example, for carrier monitoring and virtual sensing). The base station (e.g., eNB) and some high-level network components may indicate the D2D configuration of the control header pseudostatically or dynamically (e.g., the format of the control header and the number of bits for each field) so that more efficient control headers can be used.

In some embodiments, in order to enable wireless communication sent by the wireless device 200 to other devices belonging to the first D2D communication group, the control header generation module 212 may include an identifier of the first D2D communication group in the control header in accordance with “extended” control header format as shown in table 1 below.

In some embodiments, the control header generation module 212 may include a group identifier in the control header in accordance with the “short” format. A “short” format can be used when D2D communications from the wireless communication device 200 are limited in some way and, accordingly, a fully “extended” control header format is not required. For example, the control header generation module 212 may use the “short” format when the wireless device 200 communicates with more than one other device in the first D2D communication group, when the control messages are of a fixed size, when the data stream is of a fixed size, or in other cases restrictions. In some embodiments, for wireless transmissions sent by the wireless communication device 200 to other devices belonging to the first D2D communication group, the control header generation module 212 may include the identifier of the first D2D communication group in the control header in accordance with the “short” control format header as shown in table 2 below. In some embodiments, the wireless device 200 does not include a control header generation module 212.

FIG. 3A-3C illustrate various D2D communication packet formats that can allocate control headers and payload data through resource blocks (“RBs”) and time slots, in accordance with various embodiments. The packets shown in FIGS. 3A-3C can be used, for example, when collision avoidance carrier-based multiple access (“CSMA / CA”) is used for D2D communications, among other applications. In particular, the packets shown in FIGS. 3A-3C may be used in 3GPP LTE communication systems. FIG. 3A shows a packet 300a, which may include, in one time slot 310a, a short preamble 302a, a reference signal 304a, a control header 306a, and payload data 308a. In some embodiments, packet 300a may be the default packet format for D2D communications. As shown in FIG. 3B, the packet 300b may include, in one time slot 310b, a short preamble 302b, a reference signal 304b, and a control header 306b. In the configuration shown in FIG. 3b, payload data may be transmitted in time slots separately from the time slot of the control header 306b. In some applications, packet 300b may have an elongated control header than packet 300a. As shown in FIG. 3C, the packet 300c includes, in two time slots, a short preamble 302c, a reference signal 304c, a control header 306c, and payload data 308c. In particular, portions of the payload data 308c may be included in both time slots 310c and 312. In some applications, the packet 300c may have an elongated control header than the packet 300a and may also use the time slot remaining in the first time slot 310c for transmission payload data.

Turning now to Figure 4, an example is shown of a base station 400 that is configured for D2D interference notification in accordance with various embodiments. The components of the base station 400, which are described in detail below, may be included in one or more base stations described above with reference to FIG. 1, including any of the base stations 122 and 124. In some embodiments, the base station 400 includes yourself or included in the eNB. In some embodiments, the components of the base station 400, which are described below, are included in the radio resource management server (“RRM”). Thus, any of the methods described here, performed by the base station, can be performed using the RRM server, if necessary. In the embodiments shown in FIG. 4, as described below, the base station 400 is considered to serve one or more wireless communication devices in a first D2D communication group (for example, as described above with reference to D2D communication groups 102, 104 and 106 on Fig. 1).

Base station 400 may include an antenna 402. The antenna 402 may take any of the forms described above with reference to the antenna 202 (FIG. 2). Although FIG. 4 depicts a single antenna, base station 400 may include additional antennas. Base station 400 may include a transceiver module 404. Antenna 402 may be coupled to transceiver module 404. The transceiver module 404 may be configured to receive and transmit signals wirelessly to and from wireless communication devices, such as any of the wireless communication devices described above with reference to FIGS. 1 and 2.

Base station 400 may include a group identifier determination module 406. The group identifier determining module 406 may be connected to the transceiver module 404. In some embodiments, the group identifier determining module 406 may be configured to detect the group identifier in the wireless transmission received by the transceiver module 404. The wireless transmission may be part of the D2D interference notification from the first wireless device served by the base station 400, notifying the base station 400 that the interference caused by the communication of the second D2D communication group, in accordance with the identifier, affect the operation of the first D2D communication group, to which the first wireless device belongs. In some embodiments, transceiver module 404 may determine, in a wireless transmission from a first wireless device belonging to a first D2D communication group, an identifier of a second D2D communication group or an identifier of a second base station serving a second wireless device belonging to a second D2D communication group . The group identifier or base station identifier can be transmitted to the base station 400 from the communication module of the base station of the first wireless communication device (for example, the communication module 210 of the base station, as shown in Fig. 2 above).

Base station 400 may include a base station identification module 408. The base station identification module 408 may use a group identifier or a base station identifier detected by the group identifier determination module 406 to identify a particular base station. In some embodiments, the base station identification module may include or provide access (for example, from a remote device) to a look-up table that lists the identifiers of base stations / groups that can be received in a wireless transmission (for example, in a group identifier field control header, as described above), and the corresponding base station identifiers are also listed (e.g., eNB IDs, IP addresses, MAC addresses, port / switch addresses, etc.). In some embodiments, the base station identification module 408 includes a display module that perceives the received identifier as an input signal and generates an identifier for the corresponding base station. In some embodiments of the present invention, the specific base station may be a base station 400. In some embodiments of the present invention, the specific base station may be a base station other than base station 400.

Base station 400 may include a D2D interference suppression module 410. D2D interference suppression module 410 may be coupled to base station identification module 408. After the base station identification module 408 determines the base station that corresponds to the received identifier, the D2D interference cancellation module 410 can initiate the D2D interference cancellation process from the identified base station. The D2D interference suppression process initiated by the D2D interference suppression module 410 may depend on the identified base station. An example of D2D interference notifications and interference suppression processes that can be performed using wireless communication devices and base stations (including base station 400) will be discussed below with reference to FIGS. 5 and 6. In some embodiments, D2D module 410 the interference suppression uses the interference measurement results provided by the wireless communication device (for example, by the interference measurement module 208 of the wireless communication device 200, as shown in FIG. 2) in the D2D interference suppression process. For example, in some embodiments, the D2D interference suppression module 410 may use the level of interference between two D2D communication groups to determine how far apart the channels allocated to the two groups should be (for example, in frequency). In some embodiments, the base station 400 may be configured to perform an interference suppression process to provide a minimum value of quality of service (“QoS”) when moving D2D devices, and when adding and removing D2D devices from different groups.

Base station 400 may include a base station communications module 416. The base station communication module 416 may be configured to communicate with other base stations using a wired or wireless communication channel. The wired output 418 is shown in FIG. 4 When the base station is identified by the base station identification module 408, it is a different base station than the base station 400, the base station 400 may communicate with the identified base station to initiate a D2D interference suppression process.

Base station 400 may also include a control header format module 412. The control header format module 412 may determine the control header format to be used in D2D communications by one or more D2D communication groups that are served by the base station 400. For example, the control header format module 412 may select from a predetermined set of control header formats (eg, “elongated” "and" short "control header formats described above with reference to tables 1 and 2). The control header format defined by the control header format module 412 for a particular D2D communication group may depend on any of a number of factors, such as the number of D2D communication groups in a given area, the possibility of interference between channels allocated for two or more D2D communication groups, and the number of devices in the D2D communication group.

Base station 400 may include a communications module 414 of a wireless communications device. The communication module 414 of the wireless communication device can be connected to the transceiver module 404 and can provide information for wireless transmission to one or more wireless communication devices that are served by the base station 400. In some embodiments, the communication module 414 of the wireless communication device can provide a signal, indicating a control header format determined by the control header format module 414. In some embodiments, implementation, the communication module 414 of the wireless communication device may transmit one or more signals to the D2D communication groups to redistribute the channels assigned to these groups.

Referring now to FIG. 5, a flowchart 500 is shown in accordance with an example D2D interference notification and interference suppression process in environments in which two D2D communication groups are served by the same base station in according to various embodiments. The flowchart 500 of the signal flow algorithm includes three devices: a wireless communication device WD1 of a first D2D communication group D2DG1 (denoted as 504), a wireless communication device WD2 of a second D2D communication group D2DG2 (denoted as 506) and a base station BS1 (denoted as 502 ), which serves both the first and second D2D communication group. Signal 510 is a D2D wireless transmission sent by WD2 506 by at least one other device in a second D2D communication group D2DG2, which is received by WD1 504 as an interference (the device does not belong to the second D2D communication group D2DG2). Signal 510 includes an identifier of a second D2D communication group D2DG2. After receiving the signal 510, the wireless communication device WD1 504 can determine the group identifier included in the signal 510 (for example, using the group identifier determining module 206, as shown in FIG. 2). Wireless communication device WD1 504 can also measure the level of interference caused by signal 510 (for example, using the interference measurement module 208 shown in FIG. 2). The wireless communication device WD1 504 may transmit the group identifier and interference measurement result information as part of the interference report to the base station BS1 502 in the signal 512. After receiving the signal 512, the base station BS1 502 can identify the D2D communication group corresponding to the group identifier included in signal composition 512 (i.e., the second D2D communication group D2DG2, using, for example, group identifier determination module 406, as shown in Fig. 4) and indicate a base station serving a specific D2D com a communication group (for example, using the base station identification module 408 shown in FIG. 4). Since the second D2D communication group D2DG2 is served by the base station BS1 506, the base station BS1 506 can initiate the D2D interference suppression process without the need to establish communication with any other base stations. As shown, in some embodiments, the base station BS1 506 can transmit the first D2D redistributed channel signal 514 to the wireless communication device wd1 504 (and possibly other devices belonging to the first D2D communication group D2DG1) and the second D2D redistributed channel signal 516 wireless device WD2 506 (and possibly other devices belonging to the second D2D communication group D2DG2). The redistributed channel signals 514 and 516 may each include, for example, a new frequency range to which the first D2D communication group and the second D2D communication group, respectively, are assigned.

Referring now to FIG. 6, an exemplary flowchart 600 of an interference signal D2D flow algorithm and interference suppression process for environments in which two D2D communication groups are served by different base stations is shown in accordance with various embodiments. The signal flow algorithm flowchart 600 includes four devices: a wireless communication device WD1 from a first D2D communication group D2DG1 (denoted as 604), a wireless communication device WD2 of a second D2D communication group D2DG2 (denoted as 606), a base station BS1 (denoted as 602), which serves the first D2D communication group, and a base station BS2 (indicated as 608), which serves the second D2D communication group. Signal 610 is a D2D transmission of a wireless signal sent from WD2 606 to at least one other device in the second D2D communication group D2DG2, which is received as interference to WD1 604 (the device is not in the second D2D communication group D2DG2). Signal 610 includes an identifier of a second D2D communication group D2DG2. After receiving the signal 610, the wireless device WD1 604 can determine the group identifier included in the signal 610 (for example, using the group identifier determining module 206 shown in FIG. 2). Wireless device WD1 604 can also measure the level of interference caused by signal 610 (for example, using the interference measurement module 208 shown in FIG. 2). Wireless device WD1 604 can transmit the group identifier and interference measurement as part of the interference report to base station BS1 602 in signal 612. After receiving signal 612, base station BS1 602 can identify the D2D communication group corresponding to the group identifier included in signal 612 (i.e. there is, the second D2D communication group D2DG2, using, for example, the group identifier detection module 406 shown in Fig. 4), and determines a base station serving a specific D2D communication group (for example, and Using the identification unit 408 of the base station shown in FIG. 4). Here, the base station serving the second D2D communication group D2DG2 is not the base station BS1 602, but the base station BS2 608. In response to the determination that the base station BS2 608 serves the second D2D communication group, the base station BS1 606 can initiate a D2D interference suppression process by transmitting the redistributed request channel signal 618 to the base station BS2 608. In some embodiments, signal 618 also includes other associated interference information, for example, interference level. Signal 618 may begin a channel reassignment negotiation process between the base station BS1 606 and the base station BS2 608. For simplicity of illustration, only one redistributed channel response signal 620 from the base station BS2 608 to the base station BS1 606 is shown. The signal 620 may include, for example, confirmation of a request for a proposed channel reallocation or confirmation of other information or a choice of a channel to which the first D2D communication group D2DG1 should be assigned. As shown, in some embodiments, the base station BS1 606 can transmit the first D2D redistributed channel signal 614 to the wireless device 604 WD1 (and possibly other devices belonging to the first D2D communication group D2DG1), and the base station BS2 608 can transmit the second D2D redistributed channel signal 616 to wireless device WD2 606 (and possibly to other devices belonging to the second D2D communication group D2DG2). The channel reallocation signals 614 and 616 may each include, for example, a new frequency range to which the first D2D communication group and the second D2D communication group, respectively, are assigned.

Referring now to FIG. 7, an example block diagram of a D2D algorithm of a jamming notification process 700 executed by a D2D wireless communication device (such as the wireless communication device 200 shown in FIG. 2) is illustrated in accordance with various embodiments. implementation. Obviously, the operations of process 700 (and other processes described herein) are performed in a specific order and illustrated once in various embodiments, one or more of the operations can be repeated, omitted, or performed in a different order. For illustrative purposes, the operations of process 700 may be described as being performed by a first wireless communication device, which may be configured as described above for wireless communication device 200 (see FIG. 2), but process 700 may be performed by any appropriate device ( for example, a programmed processing system, ASIC, or other wireless computing device). In the discussion of process 700, the first wireless device is referred to as belonging to the first D2D communication group and is served by the first base station.

Process 700 may begin at a possible step 702 in which the first wireless device may communicate with another wireless device in the first D2D communication group. In some embodiments, the operation in step 702 may be performed by a processing circuit included in the transceiver module 204 and the D2D communication module 214 (FIG. 2). In some embodiments, intra-group communication at 702 is in accordance with a multiple access protocol.

At 704, the first wireless device may detect a group identifier in the wireless transmission from the second wireless device served by the second base station. The group identifier may represent a second D2D communication group to which the second wireless device belongs. The second D2D communication group may be different from the first D2D communication group to which the first wireless device belongs, and thus, wireless transmission from the second wireless device may interfere with the first wireless device. In some embodiments, operation 704 may be performed by a processing circuit included in group identifier determining module 206 (FIG. 2). In some embodiments, the wireless transmission from the second wireless device is received on a channel dedicated to the first D2D communication group from the first base station. In other words, both the first and second D2D communication groups were assigned to the same or overlapping channels of the first and second base stations, respectively.

In some embodiments, operation 704 may include identifying a group identifier in a group identifier field of a wireless transmission control header from a second wireless device. Examples of control headers, which may include group identifier fields, are described above (for example, with reference to tables 1 and 2). The control header may include one or more other fields in addition to the group identifier field. For example, in some embodiments, the control header may include a control type field and a control message field. In some embodiments, the control header may include a duration field with a value indicating the number of time slots occupied by the control header and subsequent corresponding transmission. In some embodiments, the control header may include the size of the control message field and the size of the payload data field. The control header and payload data may be located in various packet configurations. For example, in some embodiments, a control header may exchange a time slot resource block with payload data.

At step 706, the first wireless device may transmit the group identifier or the identifier of the second base station to the first base station serving the first wireless device. In some embodiments, operation 706 may be performed by a processing circuit included with transceiver module 204 and base station communication module 210 (FIG. 2). The transmission of the group identifier or the identifier of the second base station may notify the first base station of the presence of interference from the second D2D communication group. In some embodiments, the first and second base stations are the same base stations; that is, the first base station serves both both the first D2D communication group and the second D2D communication group (for example, as shown in FIG. 1, in which, the base station 124 serves both D2D communication groups 104 and 106). In some embodiments, at 706, the first wireless device may further transmit interference level measurement data from the second wireless device to the first base station.

FIG. 8 illustrates an exemplary flowchart of a D2D algorithm for an interference suppression initiation process 800 in accordance with various embodiments. For illustrative purposes, operations of a process 800 may be described with reference to operations performed by a first base station, as described above for a base station 400 (FIG. 4), but process 800 may be performed by any suitable device (eg, a programmed processing system, ASIC or another base station).

In step 802, the first base station may determine in wireless transmission from the first wireless device belonging to the first “device-device” (D2D) communication group (for example, wireless device 200 in FIG. 2), the identifier of the second D2D communication group, to to which the second wireless device belongs, or the identifier of the second base station serving the second wireless device. In some embodiments, operation 802 may be performed by a processing circuit included with transceiver module 404 and group identifier determination module 406 (FIG. 4). As discussed above with reference to the process 700 in FIG. 7, wireless transmission from the first wireless communication device can notify the first base station of interference from the second D2D communication group.

At 804, the first base station can determine the identity of the second base station based at least in part on the identifier. In some embodiments, operation 804 may be performed by a processing circuit included in base station identification module 408 (FIG. 4). In some embodiments, operation 804 may be performed in part by a display module that generates an identification signal for a second base station in response to entering an identifier found in operation 802.

At step 806, the first base station can initiate a D2D interference suppression process from the second base station determined at step 804. In some embodiments, operation 806 may be performed by a processing circuit included in the D2D interference suppression module 410 (in FIG. 4) . Any of the interference cancellation processes described here may be initiated at block 806, including those described above with reference to FIGS. 5 and 6. Specific embodiments of operation 806 are described below with reference to a process 900 shown in FIG. 9 .

Turning now to FIG. 9, an exemplary block diagram of a D2D algorithm of a noise reduction process 900 in accordance with various embodiments is shown. As described above with reference to the process 800 shown in FIG. 8, for illustrative purposes, the operations of the process 900 may be described taking into account that the operations of the process are performed by the first base station.

In decision block 902, the first base station determines whether the second base station is the same base station as the first base station. In some embodiments, the decision determination block 902 may be performed by the base station identification module 408 (FIG. 4). If the first base station determines that the second base station is one base station, then the first base station may go to operation 904 and may reallocate the communication channel assigned to at least one of the first D2D communication group and the second D2D communication group. In some embodiments, operation 904 may be performed using the D2D interference suppression module 410 (FIG. 4). If the first base station determines in decision block 902 that the second base station is a different base station than the first base station, then the first base station can go to step 906 and transmit a signal to the second base station to initiate the D2D interference suppression process. In some embodiments, operation 906 may be performed using a D2D interference suppression module 410 and a base station communications module 416 (FIG. 4). In some embodiments, the signal is transmitted to the second base station in step 906 and may include a channel reallocation request.

Referring to FIG. 10, an exemplary flowchart of a process 1000 for setting a D2D group identifier in a D2D wireless transmission by a D2D communication device (such as the wireless communication device 200 shown in FIG. 2) in accordance with various embodiments is illustrated. For illustrative purposes, operations of a process 1000 may be described with reference to a flowchart of a first wireless communication device, which may be configured as described above for wireless communication device 200 (FIG. 2), but process 1000 may be performed by any appropriate device (for example, a programmed processing system, ASIC, or other wireless computing device). In the discussion of process 1000, the first wireless communication device is referred to as belonging to the first D2D communication group and is served by the first base station.

The process 1000 may begin at step 1002 in which the first wireless device may receive from the first base station (i.e., the base station that services the first wireless device) the identifier of the first D2D communication group (i.e., the group to which the first wireless device belongs). In some embodiments, operation 1002 may be performed by a processing circuit included with transceiver module 204 and base station communication module 210 (FIG. 2).

In some embodiments, the first D2D communication group identifier uniquely identifies the first D2D communication group among all groups served by a D2D first base station, or between all D2D communication groups in a network served by several base stations. In some embodiments, the first D2D communication group identifier is the same identifier as the identifier of the other D2D communication group The other D2D communication group can be served by a first base station or served by a base station other than the first base station.

In some embodiments, the size (for example, the number of bits) of the identifier of the first D2D communication group received in step 1002 may be selected by the first base station. For example, in some embodiments, the size of the identifier of the first D2D communication group may be selected by the first base station based at least in part on the number of D2D groups served by the first base station. When the first base station serves multiple D2D groups, the first base station may select a larger size for the identifier of the first D2D group in order to have enough bits available to provide different identifiers for the multiple D2D groups. In another example, in some embodiments, the size of the identifier of the first D2D group may be selected by the first base station based on at least partially the intergroup proximity of the different D2D groups served by the first base station. When the first base station serves several D2D groups that are far enough apart, a significant level of intergroup interference is unlikely, the first base station can use fewer bits for D2D group identifiers (for example, serving two or more D2D groups having one and same identifier).

In some embodiments, the identifier includes data representing the identifier of the first base station. This can make it easy to identify the base station serving the first D2D group. The data representing the identifier of the first base station may take any of a number of forms. In some embodiments, data representing the identifier of the first base station includes an eNB identifier. In some embodiments, the data representing the identifier of the first base station includes a shortened eNB identifier (for example, a hash output to which the eNB identifier has been applied).

In operation 1004, the first wireless device may wirelessly transmit the group D2D identifier (received in step 1002) in the wireless control header directed to other wireless devices in the first D2D group. Any techniques described herein for inserting the group D2D identifier into the control header can be used in operation 1004. In some embodiments, operation 1004 may be performed by a processing circuit included in the control header generation module 212 and the D2D communication module 214 (fi. 2).

Turning now to FIG. 11, an exemplary flowchart of a process 1100 for configuring a control header executed by a base station (eg, base station 400 shown in FIG. 4) is shown in accordance with various embodiments. For illustrative purposes, operations of a process 1100 may be described with reference to an example where process operations are performed by a first base station, as described above for base station 400 (FIG. 4), but process 1100 may be performed by any suitable device (eg, a programmed system processing, ASIC or other base station). In the discussion of process 1100, the first base station is considered as serving the first group of wireless communication devices that belongs to the first D2D communication group.

At 1102, the first base station can transmit the identifier of the first D2D group to the first wireless device for inclusion in the control header of the wireless message transmitted by the first wireless device to other wireless devices belonging to the first D2D group. The identifier of the first D2D group may take the form of any of the group D2D identifier described herein. In some embodiments, operation 1102 may be performed by transceiver module 404 and communication module 414 of a wireless communications device (FIG. 4).

At 1104, the first base station can transmit a signal indicating the appropriate control header format to the first wireless device. In some embodiments, the control header format may include one of an elongated control header format and a shortened control header format (for example, as described above with reference to tables 1 and 2, respectively). In some embodiments, the implementation of the short control header format may not include a sender identification field. In some embodiments, the short control header format does not include a control message size field or a payload data size field. In some embodiments, operation 1104 may be performed by a control header format module 412 and a communication module 414 of a wireless communication device (FIG. 4). Specific embodiments of operation 1104 are described below with reference to process 1200 shown in FIG.

Turning now to FIG. 12, an exemplary flow chart of a process 1200 for displaying a control header format in accordance with various embodiments is shown. As described above with reference to block 1100 shown in FIG. 11, for illustrative purposes, the operations of process 1100 may be described in view of the fact that they are performed by the first base station.

In operation 1202, the first base station can determine whether the first wireless D2D device receives packets from at least one wireless device of the first D2D group. If so, then the first base station may proceed to operation 1206 and selects a short control header format for transmission to the first wireless device (for example, at 1104 in FIG. 11).

If the first base station determines, at step 1202, that the first wireless device does not receive D2D packets from at least one of the many wireless devices of the first D2D group (for example, that the first wireless device receives D2D packets from two or more wireless devices in the first D2D group), the first base station may proceed to operation 1204 and select an extended control header format for transmission to the first wireless device (for example, at step 1104 in FIG. 11).

FIG. 13 is an exemplary block diagram of a computing device suitable for implementing the disclosed embodiments, in accordance with various embodiments. Computing device 1300 may include a number of components including one or more processor (s) 1304 and at least one communication chip 1306. In various embodiments, the processor 1304 may include a processor core. In various embodiments, at least one communication chip 1306 may also be physically and electrically connected to processor 1304. In other embodiments, communication chip 1306 may be part of processor 1304. In various embodiments, computing device 1300 may include PCB 1302. In these embodiments, the processor 1304 may have a communication chip 1306 located thereon. In alternative embodiments, implementation, the various components can be connected without the use of PCB 1302.

Depending on use, computing device 1300 may include other components that may or may not be physically and electrically connected to PCB 1302. These other components include, but are not limited to, non-volatile memory (eg, dynamic random access memory) 1308, also referred to as "DRAM"), non-volatile memory (for example, read-only memory 1310, also referred to as "ROM", one or more hard drives, one or more solid state drives, one or more drives and / or one or more digital universal drives), flash memory 1312, input / output controller 1314, digital signal processor (not shown), crypto processor (not shown), graphics processor 1316, one or more antennas 1318, touch screen 1320, touch screen controller 1322, other displays (e.g., liquid crystal displays, cathode ray tube displays and electronic ink displays, not shown), battery 1324, audio codec (not shown), video codec (not shown), global system device 1328 positioning i (GPS), compass 1330, accelerometer (not shown), gyroscope (not shown), speaker 1332, camera 1334 and storage device (e.g., hard disk, solid state drive, compact disc (CD), digital versatile disk (DVD) ) (not shown) and so on. In various embodiments, the processor 1304 may be integrated on a chip with other components to form a system on a chip (SoC).

In various embodiments, volatile memory (e.g., DRAM 1308), non-volatile memory (e.g., ROM 1310), flash memory 1312, and memory can include programming instructions configured to control the operation of computing device 1300 in conjunction with a processor ( mi) 1304, for the implementation of all or certain aspects of the processes described here. For example, one or more memory components, such as volatile memory (e.g., DRAM 1308), non-volatile memory (e.g., ROM 1310), flash memory 1312, and storage device may include temporary and / or permanent copies of instructions that, when executed, enable the computing device 1300 to control the operation by means of a control unit 1336 configured to implement all or selected aspects of the methods described herein. The memory of computing device 1300 may include one or more storage resources, which are the physical part of the device on which computing device 1300 is installed and / or one or more storage resources that are available using, but not necessarily, parts of computing device 1300 So, for example, a data storage resource may be available to computing device 1300 over a network via communication chip 1306.

Communication chip 1306 may provide wired and / or wireless communication for transferring data to and from computing device 1300. The term “wireless” and its derivatives can be used to describe circuits, devices, systems, methods, technologies, communication channels, etc. that can transmit data through the use of modulated electromagnetic radiation through a communication medium. The term does not imply that the corresponding devices do not contain any wires, although in some embodiments, they may not be present. Many of the embodiments described herein can be used with WiFi and 3GPP / LTE communication systems. However, communication chip 1306 can implement any of the wireless standards and protocols, including but not limited to IEEE 702.20, general packet radio communication system ("GPRS"), development of data optimization ("Ev-DO"), high-speed packet data transmission ("HSPA +"), high-speed wireless downlink access ("HSDPA +"), high-speed wireless uplink access ("HSUPA +"), global system of mobile communications ("GSM"), promising technology for the development of the standard GSM ("EDGE"), multiple access code division multiple access ("CDMA"), time division multiple access ("TDMA"), digital advanced wireless ("DECT"), Bluetooth and their derivatives, as well as any other wireless communication protocols that have been identified as 3G, 4G, 5G onwards. Computing device 1300 may include multiple communication chips 1306. For example, the first communication chip 1306 may be intended for short-range wireless communication such as Wi-Fi and Bluetooth, and the second communication chip 1306 may be dedicated to provide long-range wireless communication such as GPS, EDGE, GPRS, CDMA, WiMAX, LTE, EV-DO and others.

In various embodiments, the computing device 1300 may be a laptop computer, netbook, laptop, ultrabook, smartphone, computer tablet, personal digital assistant (PDA), ultra mobile PC, mobile phone, desktop computer, server, printer, scanner, monitor, A set-top box, a control unit for viewing entertainment programs (for example, a game console), a digital camera, a portable music player, or a digital video recorder. In other embodiments, the computing device 1300 may be any other electronic device that processes data.

The following is a description of examples of various embodiments. In various embodiments, the wireless communication device includes a circuit configured to determine a group identifier in wireless transmission from a second wireless device served by a second eNB, the group identifier represents a second “device-device” (D2D) communication group to which the second wireless communication device, the second D2D communication group is different from the first D2D communication group to which the wireless communication device belongs, and give a group identifier or an identifier of a second eNB to a first eNB that the wireless communication device serves to notify the first eNB of interference from the second D2D communication group. The process of determining a group identifier in a wireless transmission from a second wireless device may include receiving a wireless transmission on a channel allocated by the first eNB to the first D2D communication group. The first eNB may be the same eNB as the second eNB. The circuit may be further configured to transmit interference measurement data from a second wireless device to the first eNB. Detecting a group identifier in a wireless transmission from a second wireless device served by a second eNB may include identifying a group identifier in a group identifier field of a wireless transmission control header. The wireless transmission control header may further include a control type field and a control message field. The wireless transmission control header may further include a duration field with a value indicating the number of time slots occupied by the control header and the next transmission. The wireless transmission control header may further include a control message size field and a payload data size field. The control header may share the time slot of the resource block with the payload data. The circuit may further be configured to communicate with at least one other member of the first D2D communication group in accordance with the multiple access protocol.

In various embodiments, the eNB includes a first wireless transmission detection module from a first wireless device belonging to a first device-to-device (D2D) communication group, an identifier of a second D2D communication group to which the second wireless device belongs, or the identifier of the second eNB that services the second wireless device; a second module for determining the identity of the second eNB based at least in part on the identifier; and a third module for initiating a D2D interference suppression process from the identified second eNB. The second module may include a display module that generates an identification signal of the second eNB in response to entering an identifier. Initiating a D2D interference cancellation process from the identified second eNB may include determining that the second eNB is the same eNB as the first eNB, and redistributing the communication channel allocated to at least one of the first D2D communication group and the second D2D communication group. Initiating the interference cancellation process D2D from the identified second eNB may include determining that the second eNB is a different eNB than the first eNB, and transmitting a signal to the second eNB to initiate the interference cancellation D2D process. The signal may include a channel reallocation request.

In various embodiments, a device-to-device (D2D) communication device includes a first module for receiving, in wireless transmission from an eNB, serving D2D communication devices, an identifier of a D2D group to which a D2D communication device belongs, an identifier includes data representing an identifier eNB; and a second module for wirelessly transmitting the D2D group identifier in the wireless control header directed to another D2D communication device in the D2D group. Data representing the eNB identifier that the D2D communication device is serving may include an abbreviated version of the eNB identifier. The group D2D identifier may be the same identifier as the identifier of another D2D group. Another D2D group may be served by an eNB. Another D2D group may be served by an eNB other than the eNB that services the D2D communication device. The size of the group D2D identifier may be selected by the eNB based at least in part on the number of D2D groups served by the eNB. The size of the group D2D identifier may be selected by the eNB based at least in part on the intergroup distance D2D of the groups served by the eNB.

In various embodiments, the at least one computer-readable storage medium includes instructions stored on it which, when executed by the eNB, cause the eNB to transmit to the first wireless communication device belonging to the first device-to-device (D2D) communication group, the identifier of the first D2D group to be included in the wireless control header transmitted by the first wireless communication device to other communication devices wireless devices belonging to the first D2D communication group, and transmit to the first wireless communication device a signal indicating the format of the control header. The control header format may include one of a short control header format and an extended control header format. The short control header format may not include a sender identification field. The short control header format may not include a control message size field or a payload data size field. In some embodiments, transmitting a control header format to the first wireless communication device may include determining that the first wireless communication device is receiving D2D packets from at least one other wireless communication device in the first D2D group, and selecting a short control header format for transmission to the first wireless communication device.

Computer-readable media (including non-readable computer-readable media), methods, systems, and devices for performing the methods described above are illustrative examples of embodiments disclosed herein. In addition, other devices that can perform the described interactions can be configured to perform the various methods described.

Some examples of embodiments of the present invention can be described below.

Example 1 is a wireless communication device comprising a circuit configured to: detect a group identifier in wireless transmission from a second wireless device served by a second eNB, the group identifier characterizing a second D2D communication group to which the second wireless device belongs, while the second The D2D communication group is different from the first D2D communication group to which said wireless communication device belongs; and transmit the group identifier or identifier of the second eNB to the first eNB serving said wireless communication device to notify the first eNB of interference from the second D2D communication group.

Example 2 is the wireless communication device of Example 1, wherein detecting a group identifier in a wireless transmission from a second wireless communication device comprises: receiving said wireless transmission on a channel allocated by the first eNB to a first D2D communication group.

Example 3 is the wireless communications apparatus of claim 1, wherein the first eNB is the same eNB as the second eNB.

Example 4 is a wireless communication device according to claim 1, wherein the circuit is further configured to: transmit interference level measurement data from a second wireless communication device to the first eNB.

Example 5 is a wireless device according to any one of examples 1-4, wherein detecting a group identifier in a wireless transmission from a second wireless device serviced by a second eNB comprises detecting a group identifier in a group identifier field of a wireless transmission control header.

Example 6 is the wireless communication device of example 5, wherein the wireless transmission control header further comprises a control type field and a control message field.

Example 7 is the wireless communication device of Example 5, wherein the wireless transmission control header further comprises a duration field with a value indicating the number of time slots occupied by the control header and subsequent transmission associated with it.

Example 8 is the wireless communication device of Example 5, wherein the wireless transmission control header further comprises a control message size field and a payload data size field.

Example 9 is the wireless communication device of example 5, in which the control header shares the time slot of the resource block with the payload data.

Example 10 is a wireless communication device according to any one of examples 1-4, wherein the circuit is further configured to: communicate with at least one other member of the first D2D communication group in accordance with a multiple access protocol.

Example 11 is an eNB comprising: a first module for detecting in a wireless transmission from a first wireless device belonging to a first “device-device” (D2D) communication group, an identifier of a second D2D communication group to which the second wireless device belongs, or the identifier of the second eNB serving the second wireless device; a second module for determining the identity of the second eNB based at least in part on said identifier; and a third module for initiating a D2D interference suppression process with the identified second eNB.

Example 12 is an eNB as in example 11, wherein the second module comprises a display module that outputs the identification data of the second eNB in response to entering the specified identifier.

Example 13 is an eNB according to example 11, wherein initiating a D2D interference suppression process with a specific second eNB comprises: determining that the second eNB is the same eNB as the first eNB; and reassigning the communication channel assigned to at least one of the first D2D communication group and the second D2D communication group.

Example 14 is an eNB according to any one of examples 11-13, wherein initiating a D2D interference suppression process with an identified second eNB comprises: determining that the second eNB is different from the first eNB; and transmitting the signal to the second eNB to initiate the D2D interference suppression process.

Example 15 is the eNB of example 14, in which the signal contains a channel reassignment request.

Example 16 includes a D2D communication device, comprising: a first module for receiving, in wireless transmission from an eNB serving a D2D communication device, a D2D identifier of the group to which the D2D communication device belongs, the identifier containing data characterizing the eNB identifier; and a second module for wirelessly transmitting the specified D2D group identifier in the control header of the wireless communication directed to another D2D communication device in the specified D2D group.

Example 17 includes a D2D communication device of example 16, wherein the data characterizing the identifier of an eNB serving a D2D communication device comprises a shortened version of an eNB.

Example 18 includes the D2D communication device of example 16, wherein the group D2D identifier is the same identifier as the identifier of another D2D group.

Example 19 is a D2D communication device of example 18, wherein said other D2D group is served by said eNB.

Example 20 is a D2D communication device of Example 18, in which another D2D group is served by an eNB other than an eNB serving a D2D communication device.

Example 21 is a D2D communication device of example 16, wherein the size of the group D2D identifier is selected by the eNB based on, at least in part, the number of D2D groups served by the eNB.

Example 22 is a D2D communication device according to any one of examples 16-21, wherein the size of the group D2D identifier is selected by the eNB based on at least partially the intergroup proximity of the D2D groups served by the eNB.

Example 23 includes at least one computer-readable storage medium containing instructions stored therein capable of causing execution by an eNB, in response to instructions by an eNB: transmitting, to a first wireless device belonging to the first D2D communication group, an identifier the first D2D group for inclusion in the control header of the wireless communications transmitted by the first wireless device to other wireless devices belonging to the first D2D communicator translational group; and transmitting to the first wireless device a signal indicating a control header format.

Example 24 is at least one computer-readable storage medium of Example 23, wherein the control header format includes a short control header format or an extended control header format.

Example 25 is at least one computer-readable storage medium of Example 24, wherein the short control header format does not include a sender identification field.

Example 26 is at least one computer-readable storage medium of Example 24, wherein the short control header format does not include a control message size field or a payload data size field.

Example 27 is at least one computer-readable storage medium according to any one of examples 24-26, wherein transmitting a control header format to the first wireless communication device comprises: determining that the first wireless communication device receives D2D packets from at most one other wireless communication device in the first D2D group; and selecting a short control header format for transmission to the first wireless communication device.

Example 28 includes a method for notifying interference in a device-to-device wireless communication by means of a wireless communication device, comprising the steps of: detecting a group identifier in a wireless transmission from a second wireless communication device served by a second eNB, the group identifier being a second “device-device” (D2D) communication group to which the second wireless communication device belongs, wherein the second D2D communication group is different from a first D2D communication group to which said wireless communication device belongs; and transmitting the group identifier or identifier of the second eNB to the first eNB serving the indicated wireless device to notify the first eNB of interference from the second D2D of the communication group.

Example 29 is the method of example 28, wherein, in a step of detecting a group identifier in a wireless transmission from a second wireless communication device, comprises: receiving a wireless transmission on a channel allocated by a first eNB to a first D2D communication group.

Example 30 is the method of example 28, wherein the first eNB is the same eNB as the second eNB.

Example 31 is a method as in any one of examples 28-30, wherein in a step of detecting a group identifier in a wireless transmission from a second wireless communication device served by a second eNB, a group identifier is identified in a group identifier field of a wireless transmission control header.

Example 32 of the method of example 31, wherein the control header shares the time slot of the resource block with the payload data or the wireless transmission control header further comprises a control type field and a control message field, a duration field with a value indicating the number of time slots occupied by the control header and subsequent transmission associated with it, or a control message size field and a payload data size field.

Although specific embodiments have been shown and described herein for purposes of description, there are a wide variety of alternative and / or equivalent embodiments or implementations designed to achieve the same ends, which can be replaced by the shown and described embodiments, which are within the scope of this inventions. This application is intended to protect any adaptations or variations of the embodiments described herein. Thus, it is expressly intended that the embodiments described herein are limited only by the claims.

When used in this description of a single or "first" element or its equivalent, such a disclosure includes one or more of these elements, not excluding two or more of these elements. In addition, indexes (for example, the first, second or third) of the identified elements are used to indicate the difference between the elements and do not indicate or imply the need or limit the number of such elements, while they do not indicate a specific position, or the sequence of such elements, unless otherwise expressly indicated.

Claims (32)

1. A wireless communication device, comprising:
a first circuit configured to detect a group identifier in wireless transmission from a second wireless communication device served by a second eNB, the group identifier characterizing a second “device-device” (D2D) communication group to which the second wireless communication device belongs, wherein wireless transmission directed to the third wireless device belonging to the second group, and the group identifier contains data characterizing the identifier of the second eNB, When this second D2D communication group different from the first D2D communication group to which the wireless communication device belongs; and
a second circuit configured to, in response to detecting the group identifier, transmit the specified group identifier or identifier of the second eNB to the first eNB serving the wireless device to notify the first eNB of interference from the second D2D communication group. 2. The wireless communications apparatus of claim 1, wherein upon detecting a group identifier in a wireless transmission from a second wireless communications apparatus, the circuit is configured to:
receive wireless transmission over the channel allocated by the first eNB to the first D2D communication group. 3. The wireless communications apparatus of claim 1, wherein the first eNB is the same eNB as the second eNB. 4. The wireless communications apparatus of claim 1, wherein the second circuit is further configured to:
transmit interference measurement data from the second wireless device to the first eNB. 5. The wireless communications apparatus of claim 1, wherein upon detecting a group identifier in a wireless transmission from a second wireless communications device served by a second eNB, the circuit is configured to identify a group identifier in a group identifier field of a wireless transmission control header. 6. The wireless communications apparatus of claim 5, wherein the wireless transmission control header further comprises a control type field and a control message field. 7. The wireless transmission apparatus of claim 5, wherein the wireless transmission control header further comprises a duration field containing a value indicating the number of time slots occupied by the control header and subsequent transmission associated with it. 8. The wireless communications apparatus of claim 5, wherein the wireless transmission control header further comprises a control message size field and a payload data size field. 9. The wireless communications apparatus of claim 5, wherein the control header shares the time slot of the resource block with the payload data. 10. The wireless communications apparatus of claim 1, wherein the second circuit is further configured to:
establish communication with at least one other member of the first D2D communication group in accordance with the multiple access protocol. 11. An eNB containing:
a first module for detecting in wireless transmission from the first wireless device belonging to the first device-to-device (D2D) communication group, the identifier of the second D2D communication group to which the second wireless device belongs, or the identifier of the second eNB serving the second device wireless communication, the wireless transmission being transmitted to the eNB by the first wireless device in response to the detection by the first wireless device of the wireless transmitting between two members of the second communication group D2D, wherein wireless transmission between two members of the second communication group D2D includes an identifier of the second communication group D2D, the second communication group identifier D2D containing data characterizing the identifier of the second eNB;
a second module for determining the identity of the second eNB based on at least partially the specified identifier; and
a third module for initiating a D2D interference suppression process with an identified second eNB. 12. The eNB as set forth in claim 11, wherein the second module comprises a display module configured to output identification data of the second eNB in response to entering said identifier. 13. The eNB node according to claim 11, wherein when initiating the process of suppressing D2D interference with the identified second eNB node, the third module is configured to:
determine that the second eNB is the same eNB as the first eNB; and
reassign the communication channel assigned to the first D2D communication group and / or the second D2D communication group. 14. The eNB node according to claim 11, wherein when initiating the process of suppressing D2D interference with the identified second eNB node, the third module is configured to:
determine that the second eNB is different from the first eNB; and
transmit a signal to the second eNB to initiate the D2D interference suppression process. 15. The eNB according to claim 14, wherein the signal comprises a channel reassignment request. 16. A “device-device” (D2D) communication device, comprising:
a first module for receiving, in wireless transmission from an eNB serving a D2D communication device, a D2D identifier of the group to which the D2D communication device belongs, the identifier comprising data characterizing an identifier of the eNB; and
a second module for wirelessly transmitting the D2D group identifier in the control header of the wireless communication directed to another D2D communication device in the D2D group. 17. The D2D communication device according to claim 16, wherein the data characterizing the identifier of the eNB node serving the D2D communication device comprises a shortened version of the eNB node identifier. 18. The D2D communication device according to claim 16, wherein the D2D group identifier is the same identifier as the identifier of another D2D group. 19. The D2D communication device according to claim 18, wherein said other D2D group is served by said eNB. 20. The D2D communication device according to claim 18, wherein said other D2D group is served by an eNB other than an eNB serving a D2D communication device. 21. The D2D communication device according to claim 16, wherein the size of the D2D group identifier is selected by the eNB based at least in part on the number of D2D groups served by the eNB. 22. The D2D communication device according to claim 16, wherein the size of the group D2D identifier is selected by the eNB based on, at least in part, the intergroup proximity of the D2D groups served by the eNB. 23. A computer-readable storage medium containing instructions stored on it that cause the eNB to execute, in response to the execution of the commands by the eNB:
transmitting to the first wireless device belonging to the first “device-device” (D2D) communication group the identifier of the first D2D group for inclusion in the control header of the wireless communications transmitted by the first wireless device to other wireless devices belonging to the first D2D communication group; and
transmitting to a first wireless communication device a signal indicating a control header format. 24. The computer-readable storage medium of claim 23, wherein the control header format includes a short control header format and / or an extended control header format. 25. The computer-readable storage medium of claim 24, wherein the short control header format does not include a sender identification field. 26. The computer-readable storage medium of claim 24, wherein the short control header format does not include a control message size field or a payload data size field. 27. The computer-readable storage medium according to claim 24, in which the transmission to the first wireless communication device format of the control header contains:
determining that the first wireless device receives D2D packets from a maximum of one other wireless device in the first D2D group; and
selecting a short control header format for transmission to the first wireless device. 28. A method for notifying a device-to-device interference by means of a wireless communication device, comprising the steps of:
detecting a group identifier in a wireless transmission from a second wireless communication device served by a second eNB, the group identifying a second “device-device” (D2D) communication group to which the second wireless communication device belongs, the wireless transmission being directed to the third wireless communication device, belonging to the second group, and the group identifier contains data characterizing the identifier of the second node eNB, while the second D2D communication groups It differs from the first D2D communication group to which the wireless communication device belongs; and
transmitting the specified group identifier or identifier of the second eNB to the first eNB serving the wireless communication device to notify the first eNB of interference from the second D2D communication group. 29. The method of claim 28, wherein in the step of detecting a group identifier in a wireless transmission from a second wireless communication device:
receive wireless transmission on the channel allocated by the first eNB for the first D2D communication group. 30. The method of claim 28, wherein the first eNB is the same eNB as the second eNB. 31. The method of claim 28, wherein in the step of detecting the group identifier in the wireless transmission from the second wireless communication device served by the second eNB, the group identifier is identified in the group identifier field of the wireless transmission control header. 32. The method according to p. 31, in which the control header shares the time slot of the resource block with the payload data or the control header of the wireless transmission further comprises a control type field and a control message field, a duration field with a value indicating the number of time slots occupied by the control header and subsequent transmission associated with it, or a control message size field and a payload data size field.

Images