BR112017003717B1 - LOW LATENCY, LOW BANDWIDTH AND LOW DUTY CYCLE OPERATION IN A WIRELESS COMMUNICATION SYSTEM - Google Patents

Abstract

LOW LATENCY, LOW BANDWIDTH AND LOW DUTY CYCLE OPERATION IN A WIRELESS COMMUNICATION SYSTEM. The present invention relates to methods, systems and devices for providing allocations and signaling for different types of communication within a wireless communication system. An eNB and/or a UE can be configured to operate within the wireless communication system using two or more different types of communication. The different types of communication may differ, for example, based on the round trip time (RTT) between transmission and acknowledgment of the transmission, a transmission time interval (TTI) for wireless transmissions, and/or the duty cycle time of wireless transmissions. Reserved resources within a system bandwidth may be identified by a first type of communication, and all or a portion of the remaining resources within the system bandwidth may be allocated to other communications that may differ from those of the first type of communication. communication based on, for example, RTT, TTI and/or duty cycle time.

Description

CROSS REFERENCES

[0001] This Patent Application claims priority to US Patent Application No. 14/825,999 by Bhushan et al, entitled “Low-Latency, Low-Bandwidth and Low Duty Cycle Operation in a Wireless Communication System”, filed on 13 August 2015, and provisional US Patent Application No. 62/044,814 by Bhushan et al, entitled “Low-Latency, Low-Bandwidth and Low Duty Cycle Operation in a Wireless Communication System”, filed on September 2, 2014; each of which is transferred to its assignee.

BASICS OF THE INVENTION

[0003] The following refers generally to wireless communication and, more specifically, to techniques for allocating resources and signaling resources allocated to different services in wireless communication systems.

[0004] Wireless communication systems are widely used to provide various types of communication content, such as voice, video, packet data, messages, broadcast and so on. These systems may be multiple access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and energy). Examples of such multiple access systems include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, and Frequency Division Multiple Access (FDMA) systems. Orthogonal Frequency Control (OFDMA).

[0005] These multiple access technologies have been adopted into various telecommunications standards to provide a common protocol that enables different wireless devices to communicate at a municipal, national, regional, and even global level. An exemplary telecommunications standard is Long Term Evolution (LTE). LTE is designed to improve spectral efficiency, lower costs, improve services, make use of new spectrum and improve integration with other open standards. LTE can use OFDMA on the downlink (DL), single-carrier Frequency Division Multiple Access (SC-FDMA) on the uplink (UL), and multiple-input multiple-output (MIMO) technology.

[0006] By way of example, a wireless multiple access communication system may include a series of base stations, each supporting communication for multiple communication devices, otherwise known as user equipment (UEs). A base station can communicate with UEs on downlink channels (e.g., for transmissions from a base station to a UE) and uplink channels (e.g., for transmissions from a UE to a base station). base).

[0007] As technology advances, some more advanced mobile devices within a wireless communications network may have capabilities for communications transmitted according to different timing characteristics or using transmissions that have different control information in relation to devices. legacy mobile devices operating within the network. Resources within the network may be used to provide services to advanced mobile devices as well as legacy mobile devices, and/or may be used to provide different types of services to advanced mobile devices. In certain situations, it may be desirable to provide flexibility in allocating the resources of a wireless communications network to different mobile devices based on the service and/or type of service being provided to the different mobile devices.

SUMMARY OF THE INVENTION

[0008] The resources described generally concern one or more improved systems, methods and/or devices for allocating resources and signaling resources allocated to different services in wireless communication systems. An Evolved Node B (eNB) and/or a UE can be configured to operate within the wireless communications system using two or more different types of communications. Different types of communications may differ, for example, based on the round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, a transmission time interval (TTI) for wireless transmissions, and/or duty cycle time of wireless transmissions. Reserved resources within a system bandwidth can be identified by a first type of communication, such as legacy communications. Some or a portion of the remaining resources within the system bandwidth may be allocated to other communications that may differ from the first type of communication based on, for example, RTT, TTI, and/or duty cycle time.

[0009] Signaling can be used to indicate resources that are allocated to different types of communications. Such signaling may include semi-static and/or dynamic signaling to indicate that certain resources are available for certain types of communication. For example, semi-static signaling can be used to indicate allocations for different types of communications, and dynamic signaling can be used to modify one or more resources for a different type of communications for a particular TTI.

[0010] In a first set of illustrative examples, a method for wireless communication is described. In one embodiment, the method may include identifying a reserved set of wireless resources within a system bandwidth for a first type of communication with a first type of user equipment (UE), and remaining wireless resources outside of the reserved pool and within the system bandwidth. In this configuration, the method may include allocating at least a subset of the remaining wireless resources to a second type of communication with a second type of UE, wherein the first type of communication and the second type of communication differ based on at least minus one round trip time (RTT) or duty cycle time.

[0011] According to the first set of examples, an apparatus for wireless communication is described. In one embodiment, the apparatus may include means for identifying a reserved set of wireless resources within a system bandwidth for a first type of communication with a first type of user equipment (UE), and remaining wireless resources outside of the reserved pool and within the system bandwidth. In such an embodiment, the apparatus may include means for allocating at least a subset of the remaining wireless resources to a second type of communication with a second type of UE, wherein the first type of communication and the second type of communication differ based on at least minus one round trip time (RTT), or duty cycle time.

[0012] According to the first set of examples, another apparatus for wireless communication is described. In one configuration, the apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. Instructions may be executable by the processor to identify a reserved set of wireless resources within a system bandwidth for a first type of communication with a first type of user equipment (UE), and remaining wireless resources outside the set reserved and within the system bandwidth. Furthermore, instructions may be executable by the processor to allocate at least a subset of the remaining wireless resources for a second type of communication with a second type of UE, wherein the first type of communication and the second type of communication differ based on at least one round trip time (RTT) or duty cycle time.

[0013] According to the first set of examples, a non-transitory computer-readable medium is described that stores computer-executable code for wireless communication. In one embodiment, code may be executed by a processor to identify a reserved set of wireless resources within a system bandwidth for a first type of communication with a first type of user equipment (UE), and wireless resources remaining wires outside the reserved pool and within the system bandwidth. Furthermore, code may be executed by the processor to allocate at least a subset of the remaining wireless resources for a second type of communication with a second type of UE, wherein the first type of communication and the second type of communication differ based on in at least one round trip time (RTT), or duty cycle time.

[0014] In some aspects of the method, apparatus and/or non-transitory computer-readable medium of the first set of examples, the first type of communication and the second type of communication may vary according to TTR, and the first type of communication may have a first subframe type with a first RTT, and the second communication type may have a second subframe type with a second RTT that is smaller than the first RTT. In some examples, the first type of communication may have a first type of subframe with a first transmission time slot (TTI), and the second type of communication may have a second type with a second type of subframes with a second TTI that is smaller than the first TTI. In certain examples, the first type of communication and the second type of communication may vary depending on the time of the work cycle, and the first type of communication may be associated with a first work cycle and utilize either a partial or a total amount of the system bandwidth, and the second type of communication may be associated with a second duty cycle that is smaller than the first duty cycle and utilize a bandwidth that is lower than the system bandwidth.

[0015] In some aspects of the method, apparatus, and/or non-transitory computer-readable medium of the first set of examples, the allocation may include identifying a presence of at least one of the second type of UE, identifying a type of data services to be provided to the at least one of the identified second type of UE and determining the remaining subset of wireless resources based, at least in part, on the type of data services to be provided to the second type of UE. In certain examples, the allocation may include determining that an amount of data in a data queue for the type of data services to be provided to the second type of UE falls below a threshold, and dynamically reallocating at least a portion of the subset of wireless capabilities to provide the first type of communication.

[0016] In some aspects of the method, apparatus and/or non-transitory computer-readable medium of the first set of examples, the method, apparatus and/or non-transitory computer-readable medium may receive a transmission from the second type of UE that data uplink must be transmitted using the second type of communication, and perform the allocation based, at least in part, on the transmission of the second type of UE. In certain examples, the allocation may be performed semi-statically based on one or more of a presence of the second type of UE or a type of data services. In some examples, an indication may be transmitted indicating the allocated subset of wireless resources. Such indication may include, for example, a presence indication channel that indicates whether the remaining wireless resources within a subframe are configured for the second type of communication. In certain examples, the indication may include a presence indication channel that indicates a form or quantity for the subset of the remaining wireless resources within a subframe that are configured for the second type of communication.

[0017] In some aspects of the method, apparatus and/or non-transitory computer-readable medium of the first set of examples, the method, apparatus and/or non-transitory computer-readable medium may allocate another subset of wireless communications resources from the resources remaining wireless for a third type of communication with a third type of UE, the other subset of resources being different from the subset of resources, and transmitting an indication of the allocated subset of resources and the other subset of resources for one or more of the second type type UE and the third type UE. In some examples, the second type of UE comprises a machine-type communication (MTC) of the UE, and the other subset of the remaining wireless resources may include control signaling and sufficient synchronization for the MTC UE to receive the second type of communication independently of the first type of communication.

[0018] In a second set of illustrative examples, a method for wireless communication is described. In one embodiment, the method may include allocating a subset of available wireless resources for a first type of traffic to be transmitted between a base station and at least one user equipment (UE). In this configuration, the method may include allocating a subset of the available wireless resources to a second type of traffic to be transmitted between the base station and the at least one UE. Further, in this configuration, the method may include transmitting a semi-static indication of the subset of wireless resources, and dynamically reallocating at least a portion of the subset of resources to the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the base station and the at least one UE.

[0019] According to the second set of examples, an apparatus for wireless communication is described. In one embodiment, the apparatus may include means for allocating a subset of available wireless resources for a first type of traffic to be transmitted between a base station and at least one user equipment (UE). In this configuration, the apparatus may include means for allocating a subset of the available wireless resources for a second type of traffic to be transmitted between the base station and the at least one UE, means for transmitting a semi-static indication of the subset of wireless resources , and means for dynamically reallocating at least a portion of the subset of resources for the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the base station and the at least one UE.

[0020] According to the second set of examples, another apparatus for wireless communication is described. In one configuration, the apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. Instructions may be executable by the processor to allocate a subset of available wireless resources for a first type of traffic to be transmitted between a base station and at least one user equipment (UE). Instructions may be executable by the processor to allocate a subset of the available wireless resources to a second type of traffic to be transmitted between the base station and the at least one UE, transmit a semi-static indication of the subset of wireless resources, and dynamically reallocate the at least a portion of the subset of resources for the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the base station and the at least one UE.

[0021] According to the second set of examples, a non-transitory computer-readable medium is described that stores computer-executable code for wireless communication. In one embodiment, code may be executable by a processor to allocate a subset of available wireless resources for a first type of traffic to be transmitted between a base station and at least one user equipment (UE). Furthermore, code may be executable by the processor to allocate a subset of the available wireless resources for a second type of traffic to be transmitted between the base station and the at least one UE, transmit a semi-static indication of the subset of wireless resources, and dynamically reallocating at least a portion of the subset of resources for the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the base station and the at least one UE.

[0022] In some aspects of the method, apparatus and/or non-transitory computer readable medium of the second set of examples, the first type of traffic may have a first subframe type with a first round trip time (RTT), and the second type of traffic may have a second type of subframe with a second RTT that is smaller than the first RTT. In certain examples, the first type of communication may be associated with a first duty cycle and utilize a total amount of system bandwidth, and the second type of communication may be associated with a second duty cycle that is less than the first. duty cycle and use a bandwidth lower than the system bandwidth. In some examples, transmission of the semi-static indication may include transmission of a system information block (SIB) including the subset indication and the wireless resource subset.

[0023] In some aspects of the method, apparatus and/or non-transitory computer-readable medium of the second set of examples, dynamic relocation of at least a portion of the resource subset may include determining that an amount of the second type of traffic in a data queue is below a threshold and dynamically reallocate at least a portion of the subset of wireless resources to provide the first type of traffic. In some examples, the method, apparatus and/or non-transitory computer readable medium may receive a transmission from the at least one UE indicating that an uplink data presence of the second type of traffic is to be transmitted and dynamically reallocate resources with based, at least in part, on transmission from the at least one UE. In certain examples, an indication of the relocation of the subset of wireless resources may be transmitted, which may include a presence indication channel that indicates whether remaining wireless resources within a subframe are configured for the second type of communication, or a channel presence indication indicating a form or quantity for the remaining subset of wireless resources within a subframe that are configured for the second type of communication.

[0024] In a third set of illustrative examples, a method for wireless communication is described. In one embodiment, the method may include receiving a semi-static allocation indicating a subset of wireless resources for transmitting a first type of traffic and a subset of wireless resources for transmitting a second type of traffic between a base station and at least one HUH. In this configuration, the method may include receiving a dynamic reallocation of at least a portion of the subset of resources for the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the base station and o at least one UE. In certain examples, the first type of traffic has a first type of subframe with a first round trip time (RTT), and the second type of traffic has a second type of subframe with a second RTT that is less than the first RTT. .

[0025] According to the third set of examples, an apparatus for wireless communication is described. In one embodiment, the apparatus may include means for receiving a semi-static allocation indicating a subset of wireless resources for transmitting a first type of traffic and a subset of wireless resources for transmitting a second type of traffic between a base station and the least one EU. In this embodiment, the apparatus may include means for receiving a dynamic reallocation of at least a portion of the subset of resources for the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the station. base and the at least one UE, wherein the first type of traffic has a first type of subframe with a first round trip time (RTT), and the second type of traffic has a second type of subframe with a second RTT that is smaller than the first RTT.

[0026] According to the third set of examples, another apparatus for wireless communication is described. In one configuration, the apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to receive a semi-static allocation indicating a subset of wireless resources for transmitting a first type of traffic and a subset of wireless resources for transmitting a second type of traffic between a base station and at least one HUH. Additionally, instructions may be executable by the processor to receive a dynamic reallocation of at least a portion of the subset of resources for the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the base station and the at least one UE, wherein the first type of traffic has a first type of subframe with a first round trip time (RTT) and the second type of traffic has a second type of subframe with a second RTT which is lower than the first RTT.

[0027] According to the third set of examples, a non-transitory computer-readable medium is described that stores computer-executable code for wireless communication. In one configuration, code may be executed by a processor to receive a semi-static allocation indicating a subset of wireless resources for transmitting a first type of traffic and a subset of wireless resources for transmitting a second type of traffic between a base station and at least one UE. Additionally, code may be executed by a processor to receive a dynamic reallocation of at least a portion of the subset of resources for the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the base station and the at least one UE, wherein the first type of traffic has a first type of subframe with a first round trip time (RTT), and the second type of traffic has a second type of subframe with a second RTT which is smaller than the first RTT.

[0028] In some aspects of the method, apparatus and/or non-transitory computer-readable medium of the third set of examples, receiving the semi-static indication may include receiving a system information block (SIB) including the subset indication and the subset of wireless resources. In some examples, a scheduling request may be transmitted that includes an indication that the second type of traffic is in a data queue, and dynamic reallocation may be based, at least in part, on the scheduling request. In certain examples, receiving dynamic relocation may include receiving, within each subframe of a radio frame, a presence indication channel that indicates whether the subset of resources within each subframe is configured for the second type of traffic.

[0029] In a fourth set of illustrative examples, a method for wireless communication is described. In one configuration, the method may include allocating a subset of available wireless resources to a first type of traffic to be transmitted between a base station and a first type of user equipment (UE), the subset associated with a first duty cycle. and utilizing the full system bandwidth of available wireless resources. In this configuration, the method may include allocating a subset of the available wireless resources to a second type of traffic to be transmitted between the base station and a second type of UE, the subset associated with a second duty cycle that is longer than the first duty cycle and uses a bandwidth within and less than the total system bandwidth.

[0030] According to the fourth set of examples, an apparatus for wireless communication is described. In one embodiment, the apparatus may include means for allocating a subset of available wireless resources for a first type of traffic to be transmitted between a base station and a first type of user equipment (UE), the subset associated with a first cycle and utilizing the full system bandwidth of available wireless resources. In this configuration, the apparatus may include means for allocating a subset of the available wireless resources to a second type of traffic to be transmitted between the base station and a second type of UE, the subset associated with a second duty cycle that is longer. than the first duty cycle and uses bandwidth within and less than the total system bandwidth.

[0031] According to the fourth set of examples, another apparatus for wireless communication is described. In one configuration, the apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. Instructions may be executable by the processor to allocate a subset of available wireless resources for a first type of traffic to be transmitted between a base station and a first type of user equipment (UE), the subset associated with a first duty cycle and utilizing the full system bandwidth of available wireless resources. Additionally, instructions may be executable by the processor to allocate a subset of the available wireless resources for a second type of traffic to be transmitted between the base station and a second type of UE, the subset associated with a second duty cycle that is longer than the first duty cycle and uses bandwidth within and less than the total system bandwidth.

[0032] According to the fourth set of examples, a non-transitory computer-readable medium is described that stores computer-executable code for wireless communication. In one embodiment, code may be executable by a processor to allocate a subset of available wireless resources for a first type of traffic to be transmitted between a base station and a first type of user equipment (UE), the subset associated with a first duty cycle and utilizing the full system bandwidth of available wireless resources. Additionally, code may be executable by the processor to allocate a subset of the available wireless resources for a second type of traffic to be transmitted between the base station and a second type of UE, the subset associated with a second duty cycle that is longer than the first duty cycle and uses bandwidth within and less than the total system bandwidth.

[0033] In some aspects of the method, apparatus and/or non-transitory computer readable medium of the fourth set of examples, the subset of resources may include self-contained control and reference signal information sufficient for the second type of UE to receive the second type of traffic using only the subset of available wireless resources. In certain examples, the subset of wireless resources may include wireless resources for transmitting control and reference signal information to different UEs of the second type of UE operating according to different duty cycles. In some examples, the second type of UE may include a machine-type communication (MTC) UE.

[0034] In a fifth set of illustrative examples, a method for wireless communication is described. In one embodiment, the method may include receiving, from a base station, an allocation indicating, within a system bandwidth, a subset of wireless resources for a first type of traffic and a subset of wireless resources for transmission of a second type of traffic, the subset associated with a first duty cycle and utilizing a full amount of system bandwidth, and the subset associated with a second duty cycle that is longer than the first duty cycle and using bandwidth lower than the system bandwidth. In this configuration, the method may include transmitting and receiving the second type of traffic to and from the base station using the subset of wireless resources.

[0035] According to the fifth set of examples, an apparatus for wireless communication is described. In one embodiment, the apparatus may include means for receiving, from a base station, an allocation indicating, within a system bandwidth, a subset of wireless resources for a first type of traffic and a subset of wireless resources. wires for transmitting a second type of traffic, the subset associated with a first duty cycle and utilizing a full amount of system bandwidth, and the subset associated with a second duty cycle that is longer than the first cycle workload and using bandwidth lower than the system bandwidth. In this configuration, the apparatus may include means for transmitting and receiving the second type of traffic to and from the base station using the wireless resource subset.

[0036] According to the fifth set of examples, another apparatus for wireless communication is described. In one configuration, the apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. Instructions may be executable by the processor to receive, from a base station, an allocation indicating, within a system bandwidth, a subset of wireless resources for a first type of traffic and a subset of wireless resources for transmission of a second type of traffic, the subset associated with a first duty cycle and utilizing a full amount of system bandwidth, and the subset associated with a second duty cycle that is longer than the first duty cycle and using bandwidth lower than the system bandwidth. In this configuration, instructions may be executable by the processor to transmit and receive the second type of traffic to and from the base station using the wireless resource subset.

[0037] According to the fifth set of examples, a non-transitory computer-readable medium is described that stores computer-executable code for wireless communication. In one configuration, code may be executed by a processor to receive, from a base station, an allocation indicating, within a system bandwidth, a subset of wireless resources for a first type of traffic and a subset of wireless resources for transmitting a second type of traffic, the subset associated with a first duty cycle and using a full amount of system bandwidth, and the subset associated with a second duty cycle that is longer than the first duty cycle and using bandwidth lower than the system bandwidth. Additionally, the code may be executable by a processor to transmit and receive the second type of traffic to and from the base station using the subset of wireless resources.

[0038] In some aspects of the method, apparatus and/or non-transitory computer-readable medium of the fifth set of examples, the subset of resources may include self-contained control and reference signal information sufficient to transmit and receive the second type of traffic utilizing only the subset of available wireless resources. In certain examples, the second type of traffic may include machine-type communication (MTC) traffic.

[0039] The foregoing has very broadly outlined the features and technical advantages of examples in accordance with the invention, so that the detailed description that follows can be better understood. Additional features and benefits will be described here below. The disclosed design and specific examples can be easily used as a basis for modifying or designing other structures to accomplish the same purposes of the present invention. These equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts described here, both their organization and method of operation, together with associated advantages will be better understood from the following description when considered in connection with the attached figures. Each of the figures is provided for the purposes of illustration and description only, and not as a definition of the limits of the claims.

BRIEF DESCRIPTION OF FIGURES

[0040] A further understanding of the nature and advantages of the present invention can be achieved by reference to the following drawings. In the accompanying figures, similar components or features may have the same reference marker. Furthermore, several components of the same type can be distinguished by following the reference label by a dash and a second marker that distinguishes between similar components. If only the first reference marker is used in the specification, the description is applicable to any of the similar components with the same first reference marker regardless of the second reference marker.

[0041] FIG. 1 shows a block diagram of a wireless communication system in accordance with various aspects of the present invention;

[0042] FIG. 2 is a diagram conceptually illustrating an example of a series of subframes and resources within subframes that may be reserved for legacy communications in a wireless communication system, in accordance with various aspects of the present invention;

[0043] FIG. 3 is a diagram illustrating an example of resource sharing that can be used in a wireless communication system in accordance with various aspects of the present invention;

[0044] FIG. 4 is a diagram conceptually illustrating an example of radio frames for legacy, low-latency communications that can be transmitted using different resources of a wireless communication system, in accordance with various aspects of the present invention;

[0045] FIG. 5 is a diagram illustrating another example of resource sharing that can be used in a wireless communication system in accordance with various aspects of the present invention;

[0046] FIG. 6 is a diagram that conceptually illustrates an example of a series of subframes and resources within subframes that may be reserved for legacy communications and other resources that may be allocated to other types of communications in a wireless communication system, in accordance with various aspects of the present invention;

[0047] FIG. 7 shows a block diagram of a device configured for use in wireless communication in accordance with various aspects of the present invention;

[0048] FIG. 8 shows a block diagram of a device configured for use in wireless communication in accordance with various aspects of the present invention;

[0049] FIG. 9 shows a block diagram of a wireless communication system in accordance with various aspects of the present invention;

[0050] FIG. 10 shows a block diagram of an apparatus for use in wireless communication in accordance with various aspects of the present invention;

[0051] FIG. 11 shows a block diagram of an apparatus for use in wireless communication in accordance with various aspects of the present invention;

[0052] FIG. 12 shows a block diagram of a base station (e.g., a forming part of the forming base station or the entirety of an eNB) for use in wireless communication in accordance with various aspects of the present invention;

[0053] FIG. 13 is a flow chart illustrating an example of a method for wireless communication in accordance with various aspects of the present invention;

[0054] FIG. 14 is a flow chart illustrating an example of a method for wireless communication in accordance with various aspects of the present invention;

[0055] FIG. 15 is a flow chart illustrating another example of a method for wireless communication in accordance with various aspects of the present invention;

[0056] FIG. 16 is a flowchart illustrating another example of a method for wireless communication in accordance with various aspects of the present invention; It is

[0057] FIG. 17 is a flow chart illustrating another example of a method for wireless communication in accordance with various aspects of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0058] Techniques are described for allocating resources from different portions of available wireless resources for different types of communications, and for signaling resource allocations. In some examples, a base station and one or more UEs may be configured to operate within the wireless communications system using two or more different types of communications, such as legacy communications in accordance with established LTE communications protocols, low-end communications latency with reduced RTTs relative to legacy communications, and/or low duty cycle communications with increased duty cycle time relative to other types of communications, for example. Resources within a system bandwidth of the wireless communications system may be identified for legacy communications, and all or a portion of the remaining resources within the system bandwidth may be allocated to other types of communications, such as legacy communications. low latency or low duty cycle. In some examples, the other communications types may provide new carrier type (NCT) service or LTE service using unlicensed radio frequency spectrum band. The other type(s) of communications may differ from legacy communications based on, for example, RTT, TTI, or duty cycle time.

[0059] Signaling may be used to indicate the resources that are allocated to other means of communication, and may include semi-static or dynamic signaling to indicate that certain resources are available for other types of communication, such as low latency communications with a reduced RTT relative to legacy communications or communications with increased duty cycle time relative to legacy communications. For example, semi-static signaling can be used to indicate allocations for different types of communications through, for example, a system information block (SIB), and dynamic signaling can be used to modify one or more resources for a different type of communications for a particular TTI. In some examples, a presence indication channel (PIC) may be used to indicate the presence of data for a communication type to one or more TTI, and the communication type for the associated TTI may be modified based on information in the PIC.

[0060] The following description provides examples, and is not limiting the scope, applicability or examples presented in the claims. Changes may be made to the function and arrangement of the elements discussed, without departing from the scope of the description. Various examples may omit, replace, or add various procedures or components as appropriate. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described in connection with some examples may be combined in other examples.

[0061] FIG. 1 illustrates an example of a wireless communication system 100 in accordance with various aspects of the description. The wireless communication system 100 includes base stations 105, UEs 115, and a core network 130. The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access functions. routing or mobility. The base stations 105 interface with the core network 130 via the backhaul links 132 (e.g., SI, etc.) and may perform radio configuration and programming for communication with the UEs 115, or may operate under the control of a base station controller (not shown). In various examples, base stations 105 may communicate, either directly or indirectly (e.g., via core network 130), with each other via backhaul links 134 (e.g., XI, etc.), which may be wired or wireless communication connections.

[0062] Base stations 105 may communicate wirelessly with UEs 115 via one or more base station antennas. Each of the base station locations 105 may provide communications coverage for a respective geographic coverage area 110. In some examples, the base stations 105 may be referred to as a transceiver base station, a radio base station, an access point, a radio transceiver, a NodeB, eNB, Home NodeB, an initial eNodeB, or some other appropriate terminology. The geographic coverage area 110 for a base station 105 may be divided into sectors that constitute only a portion of the coverage area (not shown). The wireless communication system 100 may include base stations 105 of different types (e.g., macro and/or small cell base stations). There may be overlapping geographic coverage areas 110 for different technologies.

[0063] In some examples, the wireless communication system 100 is an LTE/LTE-A network in which base stations 105 and UEs 115 may be configured to operate using two or more different types of communication, such as legacy communications. in accordance with established LTE communications protocols, low latency communications with reduced RTTs relative to legacy communications, and/or low duty cycle communications with increased duty cycle relative to other types of communications, for example. In LTE/LTE-A networks, the term eNB may be generally used to describe the base stations 105, whereas the term UE may be generally used to describe the UEs 115. The wireless communication system 100 may be a network Heterogeneous LTE/LTE-A in which different types of eNBs provide coverage for different geographic regions. For example, each eNB or base station 105 may provide communications coverage for a macrocell, a small cell, and/or other types of cells. The term “cell” is a Third Generation Partnership Project (3GPP) term that can be used to describe a base station, carrier, or component carrier associated with a base station or coverage area (e.g., the sector, etc.) from a carrier or base station, depending on the context.

[0064] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions with the network provider. A small cell is a low-power base station, compared to a macrocell, that can operate in the same or different (e.g. licensed, unlicensed, etc.) frequency bands as macrocells. Small cells may include picocells, femtocells, and microcells according to various examples. A picocell can cover a relatively smaller geographic area and can allow unrestricted access by UEs with service subscriptions with the network provider. A femtocell may also cover a relatively small geographic area (e.g., a house) and may provide restricted access by UEs that have an association with the femtocell (e.g., UEs in a closed subscriber group (CSG), UEs for users in the home and similar). An eNB for a macrocell can be referred to as a macro eNB. An eNB for a small cell may be referred to as an eNB, a pico eNB, a femto eNB, or a small cell initial eNB. An eNB may support one or several (e.g., two, three, four, and the like) cells (e.g., component carriers).

[0065] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, base stations can have similar frame timing, and transmissions from different base stations can be approximately aligned in time. For asynchronous operation, base stations can have different frame times, and transmissions from different base stations cannot be aligned in time. The techniques described here can be used for both synchronous and asynchronous operations.

[0066] Reserved resources may be identified within a system bandwidth of the wireless communication system 100, in some examples, that are compatible with LTE and LTE-A 3GPP (e.g., compatible with versions 10, 11 and 12), referred to as legacy communications. All or a portion of the remaining resources within the system bandwidth may be allocated to other types of communications, such as low latency or low duty cycle communications, as will be described in more detail below. Signaling may be used to indicate resources that are allocated to other communications, and may include semi-static or dynamic signaling to indicate that certain resources are available for other types of communications, such as low-latency communications with a reduced RTT relative to to legacy communications or communications with increased duty cycle time relative to legacy communications.

[0067] Communication networks that can accommodate some of the various disclosed examples can be packet-based networks that operate according to a layered protocol stack. At the user plane, communications at the bearer or packet data convergence protocol (PDCP) layer can be IP-based. A Radio Link Control (RLC) layer can perform packet segmentation and reassembly to communicate over logical channels. A Medium Access Control (MAC) layer can perform priority treatment and multiplexing of logical channels into transport channels. The MAC layer can also use hybrid ARQ (HARQ) to provide retransmission at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and base stations 105 or core network 130 that supports radio bearers for data. of the user plan. At the Physical layer (PHY), transport channels can be mapped to Physical channels.

[0068] The UEs 115 are dispersed throughout the wireless communication system 100, and each UE 115 may be stationary or mobile. A UE 115 may also include or be referred to by those skilled in the art as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, an apparatus, a user agent, a mobile client, a client, or some other appropriate terminology. A UE 115 may be a machine-type communication device (MTC), a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a portable device, a tablet, a laptop computer, a cordless telephone, a wireless local loop station (WLL) or similar. In some implementations, an MTC device may be included in or work in conjunction with a vehicle, a sensor, and/or any of a number of other applications that may use MTC devices, such as a meter (e.g., a gas meter or parking meter). ), home appliances, health devices, or other monitoring devices. A UE may be capable of communicating with various types of base stations and network equipment, including macro eNBs, small cell eNBs, relay base stations, and the like.

[0069] Communication links 125 shown in wireless communication system 100 may include uplink (UL) transmissions from a UE 115 to a base station 105, and/or downlink (DL) transmissions, from from a base station 105 to a UE 115. Downlink transmissions may also be called forward link transmissions, while uplink transmissions may also be called reverse link transmissions. Each communication link 125 may include one or more carriers, wherein each carrier may be a signal consisting of multiple subcarriers (e.g., waveform signals of different frequencies) modulated in accordance with the various radio technologies described above. Each modulated signal can be sent on a different subcarrier and can carry control information (e.g. reference signals, control channels, etc.), general information, user data, etc. Communication links 125 may transmit bidirectional communications using FDD (e.g., utilizing paired spectrum resources) or TDD operation (e.g., using unpaired spectrum resources). Frame structures can be defined for FDD (e.g. frame structure type 1) and TDD (e.g. frame structure type 2).

[0070] In some embodiments of system 100, base stations 105 and/or UEs 115 may include multiple antennas to employ antenna diversity scheme to improve the quality and reliability of communication between base stations 105 and UEs 115 Additionally or alternatively, base stations 105 and/or UEs 115 may employ multiple-input, multiple-output (MIMO) techniques that can take advantage of muktipath environments to transmit multiple spatial layers carrying the same or different encoded data.

[0071] The wireless communication system 100 may support operation on multiple cells or carriers, a feature that may be referred to as carrier aggregation (CA) or multicarrier operation. A carrier may also be referred to as a component carrier (CC), a layer, a channel, etc. The terms “carrier”, “component carrier”, “cells” and “channel” may be used interchangeably here. A UE 115 may be configured with multiple downlink CCs and one or more uplink CCs for carrier aggregation. Carrier aggregation can be used with both FDD and TDD component carriers.

[0072] As discussed above, several examples provide communications in a wireless communication system, such as the wireless communication system 100 of FIG. 1, which can support several different types of communication. A first type of communication that may, for example, operate in accordance with a first latency mode may use frame, slot, symbol, and subcarrier spacing as specified for legacy LTE communications. For example, time slots in LTE/LTE-A can be expressed in several of a basic time unit (e.g., the sampling period, Ts = 1/30,720,000 seconds). Timing resources can be organized according to radio frames of length 10 ms (Tf = 307200^Ts), which can be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame can include ten 1ms subframes numbered 0 to 9. A subframe can be further divided into two 0.5ms slots, each of which contains 6 or 7 periods of modulation symbols (depending on the length of the cyclic prefix look-ahead for each symbol) . Excluding the cyclical prefix, each symbol contains 2048 sample periods. Additionally, latency-first mode communications can be initiated through legacy LTE techniques, such as through paging or control channels for downlink communications, and through scheduling requests and random access procedures for downlink communications. uplink.

[0073] A second type of communication may, for example, operate according to a second latency mode, or low latency mode, in which a round trip time (RTT) between a transmission and confirmation of transmission is reduced relative to RTT for legacy communications. Additionally, low latency mode communications may use symbols having a reduced transmission time interval (TTI), for example, through reduced symbol duration relative to legacy LTE symbols. Therefore, in some cases, the legacy LTE subframe may be the smallest programming unit, or TTI. In other cases, including for systems that support low latency operation or a low latency mode, a TTI may be shorter than a subframe or may be used in transmission bursts (e.g., in short TTI bursts or on carriers component selected using short TTIs). In some cases, one or more symbols may be used for shorter TTIs, wherein each TTI may be either an uplink or a downlink symbol. System 100 may support operation of UE 115 with TTIs of different durations - in these systems, longer duration TTIs may be referred to as legacy TTIs and shorter duration TTIs may be referred to as low latency TTIs. Communications according to the first and/or second types of communications may be provided by allocating resources within the resources of the wireless communication system 100 available for such communications.

[0074] A third type of communication may, for example, operate according to the duty cycle time that is increased relative to the duty cycle time of the first and second types of communications. Additionally, in some examples, the third type of communication may utilize reduced system bandwidth. Communications according to the second and/or third types of communications may be provided by allocating resources within the resources of the wireless communication system 100 available for such communications.

[0075] FIG. 2 is a conceptual diagram illustrating an example of portions of radio frames 200 and different subframes 205 and 210 that may be transmitted. The radio frames of FIG. 2 may be transmitted using portions of the wireless communication system 100 described with reference to FIG. 1 between one or more base stations 105 and/or one or more UEs 115, for example. As mentioned above, different types of UEs (e.g., UEs 15 of FIG. 1) may be provided and may have different capabilities. For example, a legacy UE may be capable of transmitting and receiving communications according to legacy protocols, while other UEs may be capable of transmitting and receiving low-latency or low-duty cycle communications. In order to maintain compatibility with legacy UEs, communications for each of the different communications types would need to maintain a set of features that are required for legacy communications with legacy UEs.

[0076] FIG. 2 shows examples of various resources that can be transmitted according to raster spacing recognized by legacy UEs that provides the 1 ms subframes 205, 210 that make up a 10 ms radio frame. Within each subframe 205, 210, a physical downlink control channel (PDCCH) 215 is provided in the first symbol of subframe 205, 210, which can provide various legacy control information. Every fifth subframe, indicated in FIG. 2 as subframes 205, for legacy communications may include certain types of synchronization and transmission signaling that are expected by legacy UEs. This signaling may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical transmission channel (PBCH). This signaling is provided in a PSS/SSS/PBCH region 220, in the six core resource blocks of subframes 205. Additionally, a common reference signal (CRS) 225 is transmitted on the PDCCH 215 and across at least a fraction of the width of system bandwidth in the PSS/SSS 205 subframes. These resources for legacy communications, according to several examples, may be reserved resources that are maintained to provide compatibility with legacy UEs. The remaining resources may be shared between legacy channels and one or more other channels, such as low-latency channels that provide low-latency communications and/or low-duty-cycle channels that can provide low-duty-cycle communications.

[0077] Referring now to FIG. 3, a block diagram 300 is described that conceptually illustrates examples of legacy communications and low latency communications using different features of a wireless communication system, in accordance with aspects of the present invention. The communications of FIG. 3 may be transmitted using portions of the wireless communication system 100 described with reference to FIG. 1 between one or more base stations 105 (e.g., eNBs) and one or more UEs 115, for example. In the example of FIG. 3, wireless resources within a system bandwidth 305 may include a legacy control region 310, low latency service regions 315, and legacy LTE service region 320. This configuration may be used with FDM or TDM communications. The inherited control region 310 may include, in certain examples, the first one or two symbols of each subframe, which may include various inherited control and signaling information. In some examples, the inherited control region may also include the six core resource blocks and SRC resource elements of certain subframes, as discussed above in connection with FIG. two.

[0078] With regard to low latency type communications, FIG. 4 is a diagram 400 conceptually illustrating an example of different types of communications in which certain wireless communication resources 405 may be configured to provide low-latency, legacy mode access in accordance with aspects of the present invention. The wireless resources 405 of FIG. 4 may be transmitted using portions of the wireless communication system 100 described with reference to FIG. 1 between one or more base stations 105 and one or more UEs 115, for example. In this example, a subset 410 of wireless communication resources 405 may provide legacy LTE service. A subset of wireless communication resources 405 may be configured for low-latency communications, and may include subframes of the type that include additional symbols over legacy LTE subframes, or that may dynamically share legacy LTE and low-latency communications. latency. According to certain examples, the low latency service 420 may include thin resource blocks (RBS), with each thin RB spanning one OFDM symbol in time and 144 consecutive subcarriers. Some resource elements (REs) within the thin RBs may be dedicated to UE reference signals (UE-RS), and some REs may be dedicated to PDCCH transmissions, with remaining REs within the thin RBs providing Shared Physical Channel transmissions. Downlink (PDSCH).

[0079] In some examples, the resource subset 410 for legacy service may be configured to handle camping, mobility, and related tasks for a UE. The feature subset 415 may be configured to provide low latency service 420 to UEs that are capable of transmitting and receiving such communications. The low latency service 420, in various examples, may be configured to provide acknowledgment of receipt of transmissions, such as an acknowledgment/negative acknowledgment (ACK/NACK) in accordance with a HARQ scheme, on a significantly shorter time scale than that these acknowledgments in legacy service 410. In some examples, symbol 420 may include data transmitted to a UE, and symbol 425 may be used to provide an acknowledgment of receipt of the transmission. In some examples, confirmation of receipt of communications may be provided in a first available symbol that is n + 4 symbols after transmission. This way, acknowledgment can be provided relatively quickly, and any necessary retransmissions can be initiated in significantly less time than similar functions provided in legacy communications. For example, legacy communications may provide acknowledgment starting with the fourth subframe after a transmission, thereby providing a minimum RTT of 4 ms, and the low latency service 420 may have symbols with lower TTI than legacy symbols and provide acknowledgment. reception starting with the fourth symbol after a transmission, thus providing, in some examples, RTTs substantially less than 1 ms.

[0080] In some examples, resource assignments may be communicated using control signaling included in resource subset 410 for the legacy service. For example, once an allocation of resource subset 415 is determined, this allocation may be transmitted to UEs using semi-static signaling, such as through a system information block (SIB) transmitted using the resource subset. In some examples, the semi-static allocation of resources to the resource subset 410 and the resource subset 410 may be determined based on a number of factors including, for example, the types of UEs that are present at a given time that are capable To receive low latency service, the types of traffic flows must be provided to the different UEs (e.g., traffic delay sensitive versus delay insensitive traffic), system utilization, and/or channel conditions, to name a few.

[0081] In some examples, the semi-static allocation of resources may be dynamically modified to change a resource that is allocated for low latency communications back to legacy communications. This dynamic reallocation may be performed on at least a portion of the subset of resources, and may be based on at least a portion of an amount of low latency traffic to be transmitted between the base station and the at least one UE. For example, a base station may determine that an amount of data in a data queue for the low latency data service is below a threshold, and may dynamically reallocate at least a portion of the subset 415 of wireless resources to provide legacy service. In other examples, a base station may receive a transmission from a UE that uplink data is to be transmitted using low latency communications, and the allocation of resource subset 415 may be determined based on the indication that the communications low-latency uplink connections are present.

[0082] Dynamic resource reallocation, in some examples, may be provided through a presence indication channel (PIC) that indicates whether remaining wireless resources within a subframe are configured for low latency communications. The PIC may indicate, for example, a form or quantity for the subset of the remaining wireless resources within a subframe that are configured for low-latency communications, or whether the remaining wireless resources within a subframe are configured for low-latency communications. low latency. The PIC may be included, in some examples, in an RE of a thin RB, and may carry information about the actual shape of the low latency segment. The shape of the low latency segment may be bounded at the top by the nominal shape that is established in the semi-static signaling, and information in the PIC may indicate the actual shape for a given resource. For example, a PIC signal that is “off” (e.g., a logical zero) may indicate that the entire subset of low-latency resources for a period of time (e.g., a subframe) has been recovered by a pattern operation. or inherited.

[0083] In some examples, if low latency service is to be provided, each subframe is allocated to include at least some low latency resources, and the PIC in such cases may indicate that these low latency resources are not needed and that the Legacy operation for these resources is provided. In some examples, a UE seeking a low-latency resource may decode the PIC signal for that resource, and if the PIC decodes it successfully, the UE then infers the actual form of the resource, as well as the PDCCH embedded in the resource, and the UE may then decode the equivalent PDCCH and PDSCH transmissions for the resources. For uplink transmissions, a base station can use the first symbol of the PDCCH to announce the dynamic allocation of low-latency resources for the next subframe period. Any previously issued uplink leases may be closed by the latest low latency segment announcements. Thus, semi-static resource allocation can be provided, which can be dynamically reallocated based on actual traffic needs, which can provide flexibility in a wireless network to provide advanced wireless communications.

[0084] As mentioned above, in some examples, low duty cycle services may be provided on a portion of available wireless communication resources outside of resources reserved for legacy transmissions. FIG. 5 is a block diagram 500 that conceptually illustrates examples of legacy communications and low duty cycle communications using different features of a wireless communication system, in accordance with aspects of the present invention. The communications of FIG. 5 may be transmitted using portions of the wireless communication system 100 described with reference to FIG. 1 between one or more base stations 105 (e.g., eNodeBs (eNBs)) and one or more UEs 115, for example. In the example of FIG. 5, wireless resources within a system bandwidth 505 may include a legacy control region 510, low latency service region 515, a low duty cycle low bandwidth service region 520, and Legacy LTE 525. This configuration can be used with any FDM or TDM communications. The inherited control region 510 may include, in certain examples, the first one or two symbols of each subframe, which may include various inherited control and signaling information, as discussed above. In some examples, the legacy control region 510 may also include the six core resource blocks and SCRS resource elements of certain subframes, as discussed above in connection with FIG. two.

[0085] Low latency service region 515 may contain capabilities for low latency communications, as discussed above. The low-duty, low-bandwidth (LBLD) service region 520 may include capabilities for LBLD communications with a duty cycle that is increased relative to legacy communications or low-latency communications. In some cases, LBLD communications may also occupy a partial amount of system bandwidth 505. In some examples, LBLD communications may be provided to MTC devices which, in turn, may be programmed to monitor only during cycle periods. relevant working conditions and can therefore save energy. Thus, LBLD communications can provide another subset of wireless capabilities. In certain examples, the LBLD communications provide completely self-contained control and synchronization signaling sufficient for the UE MTC to receive the LBLD communications regardless of the legacy or low-latency communication type, which have a duty cycle that is shorter and which can also occupy the entire bandwidth of system 505. In some examples, each LBLD segment 520 may include a series of consecutive RBs that are repeated once every predetermined number of subframes. For example, each LBLD segment can include six consecutive RBs and repeat once every 10 subframes, thus providing a 10% duty cycle. In some examples, different UEs may be programmed for different duty cycles, and resources for LBLD communications may be allocated according to the duty cycle of devices that are present. For example, devices with a 20% duty cycle can result in an LBLD resource allocation in two out of every 10 subframes, and devices with a 1% duty cycle can result in an LBLD resource allocation in one out of every 100 subframes. subframes.

[0086] LBLD resource allocation and signaling may be provided in a similar manner to that discussed above in relation to low latency resource allocations. LBLD resource allocation can be done semi-statically and resources can be dynamically reallocated in a similar manner as discussed above. In examples where allocations are made for both low latency and LBLD communications, signaling can provide dynamic allocations and reallocations of resources for one or both services. Furthermore, in the case where other services may be allocated to some of the wireless communications resources, signaling may be provided to indicate any number of such additional services in a similar manner.

[0087] FIG. 6 is a diagram conceptually illustrating an example of portions of radio frames 600 and different subframes 605 and 610 that may be transmitted. The radio frames of FIG. 6 may be transmitted using portions of the wireless communication system 100 described with reference to FIG. 1 between one or more base stations 105 and/or one or more UEs 115, for example. As mentioned above, different types of UEs (e.g., UEs 115 of FIG. 1) may be provided and may have different capabilities. For example, a legacy UE may be capable of transmitting and receiving communications in accordance with legacy protocols, while other UEs may be capable of transmitting and receiving low-latency communications, and MTC devices may be capable of transmitting and receiving communications in accordance with legacy protocols. low duty cycle.

[0088] FIG. 6 shows various wireless communication features that can be transmitted according to various examples. In this example, legacy PDCCH signals 615, legacy PSS/SSS/PBCH regions 620, and legacy CRS REs 625 are indicated in the same manner as in FIG. 2, and are identified as resources reserved for a first type of communication (e.g., legacy communication with legacy UEs). In this example, a subset of the remaining wireless resources is allocated for a second type of communication with a second type of UE which, in the example of FIG. 6, includes low latency services resources 630 allocated to UEs that support low latency communications. As discussed above, in some examples when low latency resources are allocated in a system, each subframe may include a certain amount of low latency resources, and these resources may be different depending on the particular subframe. For example, in subframe 610-a, low latency service resources 630 may occupy a portion of the subframe's six core resource blocks, while low latency service resources 630 are allocated in subframes 605-a, 605-b, and 605-c. are allocated so as not to occupy these reserved resources.

[0089] Furthermore, in the example of FIG. 6, a series of LBLD resources 635 to 645 can also be allocated. In some examples, LBLD resources 635 may be allocated to UEs with a first duty cycle, LBLD resources 640 may be allocated to UEs with a second duty cycle, and LBLD resources 645 may be allocated to UEs that have a third duty cycle. of work. As discussed above, the duty cycle of a UE, such as an MTC device, can be defined such that the UE must only monitor a channel during a limited time defined by the device's duty cycle, which can allow for efficient improved power supply of such devices. Thus, the waveform of FIG. 6 provides several difference segments that can be used for several different types of communications. It should be understood that the example of FIG. 6 is just one of many different examples, as will be readily recognized by one skilled in the art.

[0090] FIG. 7 shows a block diagram 700 of a device 705 for use in wireless communication in accordance with various aspects of the present invention. Device 705 may be an example of one or more aspects of a UE 115 described with reference to FIG. 1, for example. Device 705 may include a receiver module 710, a wireless communications management module 715, and/or a transmitter module 720. Device 705 may also be or include a processor (not shown). Each of these modules can be in communication with each other.

[0091] The modules represented in device 705 may, individually or collectively, be implemented using one or more application-specific integrated circuits (ASICs) adapted to perform some or all of the applicable hardware functions. Additionally or alternatively, the functions may be performed by one or more other processing units (or cores), on one or more integrated circuits. In other examples, other types of integrated circuits may be used (e.g., Structured/Platform ASICs, Field Programmable Gate Arrays (FPGAs), and other Semi-Custom ICs), which may be programmed in any manner known in the art. The functions of each module can also be applied, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more general or application-specific processors.

[0092] The receiver module 710 may receive information such as packets, user data, and/or control information associated with various information channels (e.g., control channels, data channels, etc.) and in accordance with a or more different types of communications (e.g., legacy LTE communications, low-latency communications, LTE communications over unlicensed spectrum, NCT communications, etc.). The receiver module 710 may be configured to receive, for example, signaling indicating an allocation of resources for different types of communications. Information may be passed to the wireless communications management module 715, and to other components of the device 705.

[0093] The wireless communications management module 715 may be configured to perform various functions related to identifying services and/or connecting wireless resources to be used for communications in accordance with different services on the device 405. This may include the identifying allocated resources, identifying active services, and performing associated functions to transmit and receive communications in accordance with the identified services and resources, which may be an example of the functions described above with reference to Figs. 2-6.

[0094] The transmitter module 720 may transmit the one or more signals received from other components of the device 705. The transmitter module 720 may transmit wireless transmissions using allocated resources and in accordance with the type of services that are identified by the transmitter module. management of wireless communications 715. In some examples, the transmitter module 720 may be co-located with the receiver module 710 in a transceiver module (not shown).

[0095] FIG. 8 shows a block diagram 800 of a device 705-a for use in wireless communication, in accordance with various examples. Device 705-a may be an example of one or more aspects of a UE 115 described with reference to FIG. 1. There may also be an example of a device 705 described with reference to FIG. 7. Device 705-a may include a receiver module 710-a, a wireless communications management module 715-a, and/or a transmitter module 720-a, which may be examples of corresponding modules of device 705. Device 705 -a may also include a processor (not shown). Each of these modules can be in communication with each other. The wireless communications management module 715-a may include a resource distribution module 805, a schedule request module 810, and a presence indication channel (PIC) receiver module. The receiver module 710-a and the transmitter module 720-a can perform the functions of the receiver module 710 and the transmitter module 720 of FIG. 7, respectively.

[0096] Within the wireless communications management module 715-a, the resource allocation module 805 can determine resource allocations for one or more types of communications. For example, resource allocation module 805 may receive semi-static indications of allocated resources for legacy and low-latency communications. Furthermore, in some examples, the resource allocation module 805 may receive dynamic reallocations of the resources that the device 705-a should use for different types of communications, in a manner similar to that discussed above in connection with FIGs. 2-6. The schedule request module 810, in some examples, may determine that the device 705-a includes data to be transmitted according to different types of communications, which may cause a base station to provide resource allocation for the communication accordingly. with the type of communication. The PIC receiving module 815, in some examples, may receive information on the PIC and may determine that one or more resources have been dynamically reallocated to a different communication type.

[0097] FIG. 9 shows a system 900 for use in wireless communication, in accordance with various examples. System 900 may include a UE 115-a, which may be an example of the UEs 115 of FIG. 1. The UE 115-a may also be an example of one or more aspects of the devices 705 of FIGS. 7 and/or 8.

[0098] The UE 115-a may generally include bidirectional voice and data communications including components for transmitting communications and components for receiving communications. The UE 115-a may include antenna(s) 940, a transceiver module 935, a processor module 905, and memory 915 (including software (SW) 920), each of which may communicate, directly or indirectly, with each other ( for example, via one or more buses 945). Transceiver module 935 may be configured to communicate bidirectionally, via antenna(s) 940 and/or one or more wired or wireless connections, with one or more networks, as described above. For example, transceiver module 935 may be configured to communicate bidirectionally with base stations 105, as discussed with reference to Figs. 1-6. Transceiver module 935 may include a modem configured to modulate packets and provide the modulated packets to antenna(s) 940 for transmission, and to demodulate packets received from antenna(s) 940. The module transceiver 935 may be capable of communicating simultaneously with one or more base stations 105 via multiple component carriers.

[0099] The UE 115-a may include a wireless communications management module of the UE 715-b, which may perform the functions described above for the wireless communications management module 715 of the device 705 of FIGS. 7 and 8. The UE 115-a may also include an optional low latency module 925 that can handle operations related to low latency communications as discussed above in connection with FIGs. 2-6. The UE 115-a may also include an optional LBLD module 930 that may handle operations related to LBLD communications as discussed above in connection with FIGs. 2-6.

[0100] Memory 915 may include random access memory (RAM) and read-only memory (ROM). Memory 915 may store computer-readable, computer-executable software/firmware code 920 containing instructions that are configured to, when executed, cause processor module 905 to perform various functions described herein (e.g., determining resource allocation, dynamic relocation and transmission of scheduling requests for services, etc.). Alternatively, the computer-executable computer-readable software/firmware code 920 may not be directly executable by the processor module 905, but be configured to cause a computer (e.g., when compiled and executed) to perform the functions described herein. The processor module 905 may include an intelligent hardware device, e.g., a central processing unit (CPU), a microcontroller, an application-specific integrated circuit (ASIC), etc.

[0101] FIG. 10 shows a block diagram 1000 of an apparatus 1005 for use in wireless communication in accordance with various aspects of the present invention. In some examples, apparatus 1005 may exemplify aspects of one or more of the base stations 105 described with reference to FIG. 1. In some examples, the apparatus 1005 may be part of or include an LTE/LTE-A eNB and/or an LTE/LTE-A base station. Apparatus 1005 may also be a processor. Apparatus 1005 may include a receiver module 1010, a wireless communications management module 1015, and/or a transmitter module 1020. Each of these modules may be in communication with each other.

[0102] The components of apparatus 1005 may, individually or collectively, be implemented using one or more ASICs adapted to perform some or all of the applicable hardware functions. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits may be used (e.g., Structured/Platform ASICs, FPGAs, and other Semi-Custom ICs), which may be programmed in any manner known in the art. The functions of each component can also be applied, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more general or application-specific processors.

[0103] In some examples, the receiver module 1010 may include at least one radio frequency (RF) receiver, such as an RF receiver operable to receive communications according to different types of communications, for example. The receiver module 1010 may be used to receive various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system 100 described with reference to FIG. 1.

[0104] In some examples, transmitter module 1020 may include at least one RF transmitter, such as at least one RF transmitter operable to transmit communications according to different types of communications, for example. The transmitter module 1020 may be used to transmit different types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links of the wireless communication system 100 described with reference to FIG. 1.

[0105] In some examples, the wireless communications management module 1015 performs various functions related to identifying services and/or allocating wireless resources to be used for communications according to different services in the apparatus 1005. This may include identifying allocated resources, identifying active services, and performing associated functions to transmit and receive communications in accordance with the identified services and resources, which may be an example of the functions described above with reference to Figs. 2-6.

[0106] FIG. 11 shows a block diagram of an apparatus 1005-a for use in wireless communication in accordance with various aspects of the present invention. In some examples, apparatus 1005-a may exemplify aspects of one or more of the base stations 105 described with reference to FIG. 1, and/or an example of aspects of the apparatus 1005 described with reference to FIG. 10. In some examples, the apparatus 1005-a may be part of or include an LTE/LTE-A eNB and/or an LTE/LTE-A base station. Apparatus 1005-a may also be a processor. The apparatus 1005-a may include a receiver module 1010-a, a wireless communications management module 1015-a, and/or a transmitter module 1020-a. Each of these modules can be in communication with each other.

[0107] The components of apparatus 1005-a may, individually or collectively, be implemented using one or more ASICs adapted to perform some or all of the applicable hardware functions. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits may be used (e.g., Structured/Platform ASICs, FPGAs, and other Semi-Custom ICs), which may be programmed in any manner known in the art. The functions of each component can also be implemented, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more general or application-specific processors.

[0108] In some examples, the receiver module 1010-a may be an example of one or more aspects of the receiver module 1010 described with reference to FIG. 10. In some examples, the receiver module 1010-a may include at least one radio frequency (RF) receiver, such as at least one RF receiver operable to receive communications according to different types of communications. The receiver module 1010-a can be used to receive various types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links. communication of the wireless communication system 100 described with reference to FIG. 1.

[0109] In some examples, the transmitter module 1020-a may be an example of one or more aspects of the transmitter module 1020 described with reference to FIG. 10. In some examples, the transmitter module 1020-a may include at least one RF transmitter, such as at least one RF transmitter operable to transmit communications according to different types of communications. Transmitter module 1020-a may be used to transmit different types of data and/or control signals (i.e., transmissions) over one or more communication links of a wireless communication system, such as one or more communication links. communication of the wireless communication system 100 described with reference to FIG. 1.

[0110] Within the wireless communications management module 715-a, the resource allocation module 1105 may determine resource allocations for one or more types of communications. For example, resource allocation module 1105 may allocate semi-static resources allocated for low latency, legacy communications and LBLD communications. Furthermore, in some examples, the resource reallocation module 1110 may determine dynamic reallocations of the resources that the apparatus 1005-a should use for different types of communications, in a manner similar to that discussed above in connection with FIGs. 2-6. The PIC module 1115, in some examples, may provide the PIC based on, for example, dynamic determinations of data to be transmitted by the apparatus 1005-a, UEs 115, and the devices 705, and may determine one or more resources that must be dynamically reallocated to a different communication type, and include the indication in the PIC.

[0111] FIG. 12 shows a block diagram 1200 of a base station 105-a (e.g., a forming part of the base station or the entirety of an eNB) for use in wireless communication in accordance with various aspects of the present invention. In some examples, base station 105-a may exemplify aspects of one or more of the base stations 105 described with reference to FIG. 1, and/or aspects of one or more of the apparatus 1005 when configured as a base station, as described with reference to Figs. 10 and/or 11. Base station 105-a may be configured to implement or facilitate at least some of the features of the base station and/or apparatus described with reference to Figs. 2-11.

[0112] The base station 105-a may include a base station processor module 1210, a base station memory module 1220, at least one base station transceiver module (represented by the transceiver module(s) base station antenna(s) 1250), at least one base station antenna (represented by the base station antenna(s) 1255), and/or a base station wireless communications management module 1015-b. The base station 105-a may also include one or more of a base station communications module 1230 and/or a network communications module 1240. Each of these modules may be in communication with each other, directly or indirectly, through of one or more 1235 buses.

[0113] Base station memory module 1220 may include random access memory (RAM) and/or read-only memory (ROM). The base station memory module 1220 may store computer-readable, computer-executable software/firmware code 1225 containing instructions that are configured to, when executed, cause the base station processor module 1210 to perform various functions described herein relating to wireless communication (e.g. resource allocation, resource reallocation, etc.). Alternatively, the computer-readable, computer-executable software/firmware code 1225 may not be directly executable by the base station processor module 1210, but be configured to carry the base station 105-a (e.g., when compiled and executed). to perform several of the functions described here.

[0114] The base station processor module 1210 may include an intelligent hardware device, e.g., a central processing unit (CPU), a microcontroller, an ASIC, etc. The base station processor module 1210 may process information received through the base station transceiver module(s) 1250, the base station communications module 1230, and/or the network communications module 1240. The module Base station processor 1210 may also process information to be sent to transceiver module(s) 1250 for transmission via antenna(s) 1255 to base station communications module 1230 for transmission to one or more other base stations 105-b and 105-c, and/or to the network communications module 1240 for transmission to a core network 1245, which may be an example of one or more aspects of the core network 130 described with reference to FIG. 1. The base station processor module 1210 may process, by itself or in connection with the base station wireless communications management module 1015-b, various aspects of resource allocation and dynamic reallocation, as discussed above in connection with to FIGS. 2-6.

[0115] The base station transceiver module(s) 1250 may include a modem configured to modulate packets and provide the modulated packets to the base station antenna(s) 1255 for transmission, and to demodulate packets received from the base station antenna(s) 1255. The base station transceiver module(s) 1250 may, in some examples, be implemented as one or more transmitter modules. base station and one or more separate base station receiver modules. The base station transceiver module(s) 1250 may support communications in a first radio frequency spectrum band and/or a second radio frequency spectrum band. The base station transceiver module(s) 1250 may be configured to communicate bidirectionally, via the antenna(s) 1255, with one or more UEs or apparatus, such as one or more of the UEs 115 described with reference to FIG. 1. Base station 105-a may, for example, include multiple base station 1255 antennas (e.g., an antenna array). Base station 105-a may communicate with core network 1245 via network communications module 1240. Base station 105-a may also communicate with other base stations, such as base stations 105-b and 105- c, using the base station communications module 1230.

[0116] Base station wireless communications management module 1015-b may be configured to perform and/or control some or all of the features and/or functions described with reference to Figs. 2-6 related to resource allocation, identification of services to be provided and reallocation of resources. The base station wireless communications management module 1015-b, or portions of the module 1015-b, may include a processor, and/or some or all of the functions of the base station wireless communications management module 1015-b may be performed by the base station processor module 1210 and/or in connection with the base station processor module 1210. In some examples, the base station wireless communications management module 1015-b may be an example of the management module wireless communications base station 1015 and/or 1015-a described with reference to Figs. 10 and/or 11.

[0117] FIG. 13 is a flow chart illustrating an example of a method 1300 for wireless communication in accordance with various aspects of the present invention. For clarity, the method 1300 is described below with reference to aspects of one or more of the base stations 105, described with reference to Figs. 1 and/or 12, and/or aspects of one or more of the devices described with reference to Figs. 10 and/or 11. In some examples, a base station may execute one or more sets of codes to control functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may perform one or more of the functions described below using special purpose hardware.

[0118] In block 1305, method 1300 may include identifying a reserved set of wireless resources within a system bandwidth for a first type of communication with a first type of user equipment (UE), and resources no remaining wires outside the reserved pool and within the system bandwidth. The operations of block 1305 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 1015 of Figs. 10, 11 and/or 12 and/or associated receivers/antennas.

[0119] In block 1310, the method may include allocating at least a subset of the remaining wireless resources for a second type of communication with a second type of UE. The first type of communication and the second type of communication differ based on at least one round trip time (RTT), or duty cycle time, for example. The operation(s) in block 1310 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 1015 of Figs. 10, 11 and/or 12 and/or associated receivers/antennas. An example structural implementation of the transmitter module 1020 may be the base station transceiver module 1250 and base station antenna(s) 1255 of FIG. 12.

[0120] Thus, method 1300 can provide wireless communication. It should be noted that method 1300 is only one implementation, and that the operations of method 1300 may be rearranged or otherwise modified such that other implementations are possible.

[0121] FIG. 14 is a flow chart illustrating an example of a method 1400 for wireless communication in accordance with various aspects of the present invention. For clarity, the method 1400 is described below with reference to aspects of one or more of the base stations 105, described with reference to Figs. 1 and/or 12, and/or aspects of one or more of the devices described with reference to Figs. 10 and/or 11. In some examples, a base station may execute one or more sets of codes to control functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may perform one or more of the functions described below using special purpose hardware.

[0122] In block 1405, method 1400 may include allocating a subset of available wireless resources for a first type of traffic to be transmitted between a base station and at least one user equipment (UE). The operations of block 1405 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 1015 of Figs. 10, 11 and/or 12 and/or associated receivers/antennas.

[0123] In block 1410, the method may include allocating a subset of the available wireless resources for a second type of traffic to be transmitted between the base station and the at least one UE. The operation(s) in block 1410 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 1015 of Figs. 10, 11 and/or 12 and/or associated receivers/antennas.

[0124] In block 1415, the method may include transmitting a semi-static indication of the subset and subset of wireless resources. The operation(s) in block 1415 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 1015 of Figs. 10, 11 and/or 12 and/or associated receivers/antennas.

[0125] In block 1420, the method may include dynamically reallocating at least a portion of the subset of resources for the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the base station and at least one UE. The operation(s) in block 1420 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 1015 of Figs. 10, 11 and/or 12 and/or associated receivers/antennas. An example structural implementation of the transmitter module 1020 may be the base station transceiver module 1250 and base station antenna(s) 1255 of FIG. 12.

[0126] Thus, method 1400 can provide wireless communication. It should be noted that method 1400 is only one implementation, and that the operations of method 1400 may be rearranged or otherwise modified such that other implementations are possible.

[0127] FIG. 15 is a flowchart illustrating an example of a method 1500 for wireless communication in accordance with various aspects of the present invention. For clarity, the method 1500 is described below with reference to aspects of one or more of the UEs 115, described with reference to Figs. 1 and/or 9, and/or aspects of one or more of the devices described with reference to Figs. 7 and/or 8. In some examples, a UE may execute one or more sets of codes to control functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may perform one or more of the functions described below using special purpose hardware.

[0128] In block 1505, method 1500 may include receiving a semi-static allocation indicating a subset of wireless resources for transmitting a first type of traffic and a subset of wireless resources for transmitting a second type of traffic between a station base and at least one UE. Operations of block 1505 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 715 of FIGS. 7, 8 and/or 9 and/or associated receivers/antennas.

[0129] In block 1510, the method may include receiving a dynamic reallocation of at least a portion of the subset of resources for the first type of traffic based, at least in part, on an amount of the second type of traffic to be transmitted between the base station and the at least one UE. In some examples, the first type of traffic may have a first type of subframe with a first round trip time (RTT), and the second type of traffic may have a second type of subframe with a second RTT that is less than the first RTT. The operation(s) in block 1510 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 715 of FIGs. 7, 8 and/or 9 and/or associated receivers/antennas. An example structural implementation of the transmitter module 1020 may be the base station transceiver module 1250 and base station antenna(s) 1255 of FIG. 12.

[0130] Thus, method 1500 can provide wireless communication. It should be noted that method 1500 is only one implementation, and that the operations of method 1500 may be rearranged or otherwise modified such that other implementations are possible.

[0131] FIG. 16 is a flowchart illustrating an example of a method 1600 for wireless communication in accordance with various aspects of the present invention. For clarity, the method 1600 is described below with reference to aspects of one or more of the base stations 105, described with reference to Figs. 1 and/or 12, and/or aspects of one or more of the devices described with reference to Figs. 10 and/or 11. In some examples, a base station may execute one or more sets of codes to control functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may perform one or more of the functions described below using special purpose hardware.

[0132] In block 1605, method 1600 may include allocating a subset of available wireless resources for a first type of traffic to be transmitted between a base station and a first type of user equipment (UE), the associated subset with a first duty cycle and using the full system bandwidth of available wireless resources. The operations of block 1605 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 1015 of Figs. 10, 11 and/or 12 and/or associated receivers/antennas.

[0133] In block 1610, the method may include allocating a subset of the available wireless resources for a second type of traffic to be transmitted between the base station and a second type of UE, the subset associated with a second duty cycle which is longer than the first duty cycle and using a bandwidth within and less than the total system bandwidth. The operation(s) in block 1610 may be performed, for example, by the transmitter module 1020 and/or the wireless communications management module 1015 of Figs. 10, 11 and/or 12 and/or associated receivers/antennas. An example structural implementation of the transmitter module 1020 may be the base station transceiver module 1250 and base station antenna(s) 1255 of FIG. 12.

[0134] Thus, method 1600 can provide wireless communication. It should be noted that method 1600 is only one application, and that the operations of method 1600 may be rearranged or otherwise modified such that other implementations are possible.

[0135] FIG. 17 is a flowchart illustrating an example of a method for wireless communication 1700 in accordance with various aspects of the present invention. For clarity, the method 1700 is described below with reference to aspects of one or more of the UEs 115, described with reference to Figs. 1 and/or 9, and/or aspects of one or more of the devices described with reference to Figs. 7 and/or 8. In some examples, a UE may execute one or more sets of codes to control functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may perform one or more of the functions described below using special purpose hardware.

[0136] In block 1705, method 1700 may include receiving, from a base station, an allocation indicating, within a system bandwidth, a subset of wireless resources for a first type of traffic and a subset of wireless capabilities for transmitting a second type of traffic. The subset may be associated with a first duty cycle and uses a full amount of system bandwidth, and the subset may be associated with a second duty cycle that is longer than the first duty cycle and uses bandwidth. bandwidth lower than the system bandwidth. The operations of block 1705 may be performed, for example, by the receiver module 710 and/or the wireless communications management module 715 of FIGS. 7, 8 and/or 9 and/or associated receivers/antennas.

[0137] In block 1710, the method may include transmitting and receiving the second type of traffic to and from the base station using the subset of wireless resources. The operation(s) in block 1710 may be performed, for example, by the receiver module 710 and/or the transmitter module 720 and/or the wireless communications management module 715 of FIGs. 7, 8 and/or 9 and/or associated receivers/antennas. An example structural implementation of the receiver module 710 or transmitter module 720 may be the UE 935 transceiver module and UE 940 antenna(s) of FIG. 9.

[0138] Thus, method 1700 can provide wireless communication. It should be noted that method 1700 is only one implementation, and that the operations of method 1700 may be rearranged or otherwise modified such that other implementations are possible.

[0139] In some examples, aspects of two or more of methods 1300 through 1700 may be combined. It should be noted that methods 1400, 1500, 1600 and 1700 are only example implementations, and that the operations of methods 1400-1700 may be rearranged or otherwise modified such that other implementations are possible.

[0140] The techniques described here can be used for various wireless communications systems, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other systems. The terms “system” and “network” are often used interchangeably. A CDMA system can implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. The IS-2000 0 and A releases are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Speed Packet Data (HRPD), etc. UTRA includes Broadband CDMA (WCDMA) and other CDMA variants. A TDMA system can implement a radio technology such as Global System for Mobile Communications (GSM). An OFDMA system can implement a radio technology such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM™, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). Long Term Evolution (LTE) 3GPP and LTE-Advanced (LTE-A) are new releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in an organization's documents called the “Third Generation Partnership Project” (3GPP). CDMA2000 and UMB are described in documents from an organization called “Third Generation Partnership Project 2” (3GPP2). The techniques described herein can be used for the radio systems and technologies mentioned above, as well as other radio systems and technologies, including cellular communications (e.g., LTE) over an unlicensed and/or shared bandwidth. The above description, however, describes an LTE/LTE-A system for example purposes, and the LTE terminology is used throughout much of the above description, although the techniques are applicable beyond LTE/LTE-A applications.

[0141] The detailed description presented above in connection with the attached drawings describes examples and does not represent the only examples that can be implemented or that are within the scope of the claims. The detailed description includes specific details for the purpose of providing an understanding of the techniques described. These techniques, however, can be practiced without these specific details. In some cases, well-known structures and apparatus are shown in block diagram form to avoid obscuring the concepts of the examples described.

[0142] Information and signals can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination of them.

[0143] The different illustrative blocks and components described in connection with the description herein may be implemented or executed with a general purpose processor, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other type of configuration.

[0144] The functions described here can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, functions may be stored or transmitted as one or more instructions or code in a computer-readable medium. Other examples and implementations are within the scope and spirit of the description and appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Resources that implement functions may also be physically located in multiple positions, including being distributed so that parts of the functions are implemented in different physical locations. As used herein, including in the claims, the term “and/or”, when used in a list of two or more items, means that any one of the aforementioned items may be used alone, or any combination of two or more of the listed items can be used. For example, if a composition is described as containing components A, B and/or C, the composition may contain only A; just B; just C; A and B in combination; A and C in combination; B and C in combination; or A, B and C in combination. Furthermore, as used herein, including in the claims, “or” as used in a list of items (e.g., a list of items preceded by a phrase such as “at least one of” “one or more of”) indicates a disjunctive list such that, for example, a list of “at least one of A, B, or C” means A or B or C or AB or AC or AC or ABC (i.e., A and B and C) .

[0145] Computer-readable media includes computer storage media and communication media, including any media that facilitates the transfer of a computer program from one place to another. A storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer. By way of example and not limitation, computer-readable media may comprise RAM, ROM, EEPROM, flash memory, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to transport or store a desired program code medium in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Furthermore, any link is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source over coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium. Disk and disc as used herein include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where discs generally reproduce data magnetically, whereas discs reproduce data optically with lasers. Combinations of the foregoing are also included within the scope of computer-readable means.

[0146] The foregoing description of the invention is provided to enable one skilled in the art to make or use the invention. Various modifications to the invention will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the description. Accordingly, the description should not be limited to the examples and drawings described herein, but should be in accordance with the broader scope consistent with the principles and innovative features described herein.

Claims (13)

1. Method (1300) for wireless communication, comprising: identifying (1305) a reserved set of wireless resources within a system bandwidth for a first type of communication with a first type of user equipment, UE, and remaining wireless resources outside the reserved pool and within system bandwidth; and allocating (1310) a subset of the remaining wireless resources to a second type of communication with a second type of UE, wherein the first type of communication and the second type of communication differ based on at least one of: the time of round trip, RTT, or duty cycle time, wherein the first type of communication has a first type of subframe with a first transmission time slot, TTI, and the second type of communication has a second type of subframe with a second TTI that is smaller than the first TTI, characterized by the fact that the second type of communication is configured to provide confirmation of receipt of transmissions on a shorter time scale than such configurations in the first type of communication, wherein the first type of communication provides acknowledgment starting with n + 4 subframes after a transmission in an nth subframe; while the second type of communication provides acknowledgment starting at a first available symbol that is n + 4 symbols after a transmission at an nth symbol. 2. Method according to claim 1, characterized by the fact that the allocation comprises: identifying a presence of at least one of the second type of UE; identifying a type of data service to be provided to the at least one of the identified second type of the UE; and determining the subset of the remaining wireless resources based, at least in part, on the type of data service to be provided to the second type of UE. 3. The method of claim 2, wherein the allocation comprises: determining that an amount of data in a data queue for the type of data service to be provided to the second type of UE is below a threshold ; and dynamically reallocating at least a portion of the subset of the remaining wireless resources to provide the first type of communication. 4. The method of claim 1, further comprising: receiving a transmission from the second type of UE that uplink data is to be transmitted using the second type of communication; and wherein the allocation is based, at least in part, on transmission from the second type of UE. 5. Method according to claim 1, characterized by the fact that the allocation is performed semi-statically based on a presence of the second type of UE, or a type of data service, or any combination thereof. 6. The method of claim 1, further comprising: transmitting an indication of the allocated subset of the remaining wireless resources. 7. The method of claim 6, wherein the indication comprises: a presence indication channel that indicates whether the remaining wireless resources within a subframe are configured for the second type of communication. 8. The method of claim 6, wherein the indication comprises: a presence indication channel that indicates a form or quantity for the subset of wireless resources remaining within a subframe that are configured for the second type of communication. 9. The method of claim 1, further comprising: allocating another subset of wireless resources from the remaining wireless resources for a third type of communication with a third type of UE, the other subset of resources wireless being different from the subset of remaining wireless resources; and transmitting an indication of the allocated subset of the remaining wireless resources and the other subset of wireless resources for the second type of UE, the third type of UE, or any combination thereof. 10. The method of claim 9, wherein the third type of UE comprises a machine-type communication UE, MTC. 11. The method of claim 10, wherein the other subset of the remaining wireless resources comprises sufficient control and synchronization signaling for the MTC UE to receive the third type of communication independently of the first type of communication. 12. Apparatus (105) for wireless communication, characterized in that it comprises means for carrying out the steps of the method as defined in any one of claims 1 to 11. 13. Computer-readable memory characterized by the fact that it comprises instructions stored therein that, when executed, cause the computer to carry out the method as defined in any one of claims 1 to 11.