Multiple cross-carrier scheduling component carriers (CCS)

Abstract

To further improve NR technology and LTE technology.SOLUTION: Several aspects of the present disclosure are generally directed to a method for wireless communication. The method generally includes: receiving a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, where each of the plurality of control messages schedules resources on a different signaling entity than one of the plurality of signaling entities on which the control message is to be received; and monitoring the configured resources on the plurality of signaling entities for the plurality of control messages.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to and the benefit of U.S. Provisional Application No. 62 / 870,991, filed July 5, 2019, which claims priority to U.S. Provisional Application No. 16 / 904,348, filed June 17, 2020, which are assigned to the assignee of the present application and are expressly incorporated by reference in their entirety as if fully set forth below and for all applicable purposes.

[0002] Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for resource scheduling. [Background technology]

[0003] Wireless communication systems have been widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcast, and the like. These wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access systems include Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, to name a few.

[0004] These multiple access technologies are being adopted in various telecommunications standards to provide a common protocol that allows different wireless devices to communicate on a city, national, regional, or even global scale. New Radio (e.g., 5G NR) is an example of a new telecommunications standard. NR is a set of extensions to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, utilizing new spectrum, and better integrating with other open standards that use OFDMA with cyclic prefixes (CPs) on the downlink (DL) and uplink (UL). For these purposes, NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.

[0005] However, as the demand for mobile broadband access continues to grow, further improvements in NR and LTE technologies are needed, and preferably these improvements should be applicable to other multiple access technologies, and the telecommunications standards that employ these technologies. Summary of the Invention [Means for solving the problem]

[0006] The systems, methods, and devices of the present disclosure each have several aspects, no single aspect of which is solely responsible for its desirable attributes, and without limiting the scope of the disclosure as expressed by the claims that follow, some features will now be discussed briefly.

[0007] Certain aspects of the disclosure relate to a method for wireless communication that generally includes receiving a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities at which the control message is to be received, and monitoring the configured resources on the plurality of signaling entities for the plurality of control messages.

[0008] Certain aspects of the present disclosure relate to a method for wireless communication that generally includes determining a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received, and transmitting an indication of the configuration of resources to a user equipment (UE).

[0009] Certain aspects of the disclosure relate to an apparatus for wireless communication. The apparatus generally includes a memory and one or more processors coupled to the memory, where the one or more processors and the memory are configured to: receive a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, where each of the plurality of control messages schedules resources on a signaling entity different from one of the plurality of signaling entities for which the control message is to be received; and monitor the configured resources on the plurality of signaling entities for the plurality of control messages.

[0010] Certain aspects of the disclosure relate to an apparatus for wireless communication that generally includes means for receiving a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities at which the control message is to be received, and means for monitoring the configured resources on the plurality of signaling entities for the plurality of control messages.

[0011] Certain aspects of the disclosure relate to a computer-readable medium having stored thereon computer-executable code for wireless communications. The computer-readable medium generally includes code for receiving a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities at which the control message is to be received, and code for monitoring the configured resources on the plurality of signaling entities for the plurality of control messages.

[0012] Certain aspects of the disclosure relate to an apparatus for wireless communication. The apparatus generally includes a memory and one or more processors coupled to the memory, where the one or more processors and the memory are configured to: determine a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, where each of the plurality of control messages schedules resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received; and transmit an indication of the configuration of resources to a UE.

[0013] Certain aspects of the disclosure relate to an apparatus for wireless communication that generally includes means for determining a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received, and means for transmitting an indication of the configuration of resources to a UE.

[0014] Certain aspects of the disclosure relate to a computer-readable medium having stored thereon computer-executable code for wireless communications. The computer-readable medium generally includes code for determining a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received, and code for transmitting an indication of the configuration of resources to a UE.

[0015] To the accomplishment of the foregoing and related ends, the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of the various aspects may be employed.

[0016] So that the above features of the present disclosure can be understood in detail, a more particular description of what has been generally described above may be made by reference to embodiments, some of which are illustrated in the drawings. However, since this description may lead to other equally effective embodiments, it should be noted that the accompanying drawings illustrate only some typical embodiments of the present disclosure and therefore should not be considered as limiting the scope of the present disclosure. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a block diagram conceptually illustrating an example telecommunications system in accordance with certain aspects of the present disclosure. [Diagram 2] FIG. 2 is a diagram illustrating an example of a frame format. [Diagram 3] FIG. 1 illustrates an example operation for cross-carrier scheduling. [Figure 4] 1 is a flow diagram illustrating example operations for wireless communication by a user equipment (UE) in accordance with certain aspects of the present disclosure. [Diagram 5] FIG. 1 is a flow diagram illustrating an example operation for wireless communication by a base station (BS) in accordance with certain aspects of the present disclosure. [Figure 6] FIG. 1 illustrates a diagram of multiple scheduling component carriers (CCs) in accordance with certain aspects of the present disclosure. [Figure 7A] FIG. 1 illustrates example operations for configuring multiple scheduling CCs in accordance with certain aspects of the present disclosure. [Figure 7B] FIG. 1 illustrates example operations for configuring multiple scheduling CCs in accordance with certain aspects of the present disclosure. [Figure 7C] FIG. 1 illustrates example operations for configuring multiple scheduling CCs in accordance with certain aspects of the present disclosure. [Figure 7D] FIG. 1 illustrates example operations for configuring multiple scheduling CCs in accordance with certain aspects of the present disclosure. [Figure 8] FIG. 1 illustrates a communications device that may include various components configured to perform operations for the techniques disclosed herein, in accordance with aspects of the disclosure. [Figure 9] FIG. 1 illustrates a communications device that may include various components configured to perform operations for the techniques disclosed herein, in accordance with aspects of the disclosure. [Figure 10] FIG. 1 is a block diagram conceptually illustrating an example BS and UE design in accordance with certain aspects of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] To facilitate understanding, the same reference numbers have been used, where possible, to refer to identical elements common to the figures. It is believed that elements disclosed in one embodiment may be advantageously utilized on other embodiments without specific recitation.

[0019] Aspects of the present disclosure provide an apparatus, a method, a processing system, and a computer-readable medium for resource scheduling. For example, some aspects relate to techniques for configuring multiple scheduling component carriers (CCs) for cross-carrier scheduling. A scheduling CC generally refers to a CC used to schedule resources for transmissions on other CCs, as described in more detail herein. By scheduling multiple scheduling CCs, if decoding of one of the scheduling CCs fails, control information on another CC can still be decoded for cross-carrier scheduling. In some aspects, one scheduling CC can be used to designate another CC as a scheduling CC. For example, a pre-configured scheduling CC can indicate resources for receiving control messages on another CC to serve as a scheduling CC. To facilitate understanding, some aspects of the present disclosure are described with respect to CCs, but aspects of the present disclosure may apply to any signaling entity, such as a frequency resource or a cell. A signaling entity as used herein refers to a CC, a frequency resource, or a cell.

[0020] The following description provides examples of traffic burst awareness in a communication system and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and configuration of the elements described without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components, as appropriate. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Also, features described with respect to some examples may be combined in some other examples. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects described herein. In addition, the scope of the disclosure is intended to encompass such apparatus or methods practiced using other structures, functions, or structures and functions in addition to or other than the various aspects of the disclosure described herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim. The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any aspect described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects.

[0021] In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a particular radio access technology (RAT) and may operate at one or more frequencies. A RAT may also be referred to as a radio technology, an air interface, etc. A frequency may also be referred to as a carrier, a subcarrier, a frequency channel, a tone, a subband, etc. Each frequency may support a single RAT in a given geographic region to avoid interference between wireless networks of different RATs. In some cases, 5G NR RAT networks may be deployed.

[0022] 1 illustrates an example wireless communication network 100 in which aspects of the present disclosure may be implemented. For example, the wireless communication network 100 may be a NR system (e.g., a 5G NR network).

[0023] As shown in FIG. 1, the wireless communication network 100 may include several base stations (BSs) 110a-110z (each also referred to herein individually as BS 110 or collectively as BS 110) and other network entities. The BSs 110 may provide communication coverage for a particular geographic area, which may also be referred to as a "cell," and may be stationary or may move according to the location of the mobile BS 110. In some examples, the BSs 110 may be interconnected to one another and / or to one or more other BSs or network nodes (not shown) within the wireless communication network 100 through various types of backhaul interfaces (such as direct physical connections, wireless connections, virtual networks, etc.) using any suitable transport network. In the example shown in FIG. 1, the BSs 110a, 110b, and 110c may be macro BSs for the macro cells 102a, 102b, and 102c, respectively. The BS 110x may be a pico BS for the pico cell 102x. BS 110y and 110z may be femto BSs for femto cells 102y and 102z, respectively. BS 110 may support one or more cells. BS 110 communicates with user equipment (UE) 120a-120y (each also referred to herein individually as UE 120 or collectively as UE 120) within wireless communications network 100. UE 120 (e.g., 120x, 120y, etc.) may be dispersed throughout wireless communications network 100, and each UE 120 may be stationary or mobile.

[0024] According to some aspects, the BS 110 and the UE 120 may be configured for resource scheduling. As shown in FIG. 1, the BS 110a includes a scheduling manager 112. The scheduling manager 112 may be configured to configure multiple component carriers (CCs) for cross-carrier scheduling according to aspects of the present disclosure. For example, the multiple scheduling CCs may be pre-configured via radio resource control (RRC) messaging. In some aspects, at least two of the scheduling CCs may be associated with different transmission / reception points (TRPs) or BSs. For example, the BS 110 may transmit control signaling on one of the scheduling CCs and the TRP 111 may transmit control signaling on another of the scheduling CCs. In some aspects, the BS 110 may send information (e.g., channel measurement information) to the TRP 111 to prompt cross-carrier scheduling by the TRP 111. As shown in FIG. 1, the UE 120a includes a scheduling manager 122. The scheduling manager 122 may be configured to receive a configuration of multiple component carriers for cross-carrier scheduling according to aspects of the present disclosure.

[0025] The wireless communication network 100 may include a relay station (e.g., relay station 110r), also referred to as a relay, that receives data and / or other information from an upstream station (e.g., BS 110a or UE 120r) and sends transmissions of the data and / or other information to a downstream station (e.g., UE 120 or BS 110) or relays transmissions between UEs 120 to facilitate communication between the devices.

[0026] A network controller 130 may couple to a set of BSs 110 and provide coordination and control for these BSs 110. The network controller 130 may communicate with the BSs 110 via a backhaul. The BSs 110 may also communicate with each other (e.g., directly or indirectly) via a wireless or wireline backhaul.

[0027] FIG. 2 illustrates an example of a frame format 200. A transmission timeline for each of the downlink and uplink may be partitioned into units of radio frames. Each radio frame may have a predetermined duration (e.g., 10 ms) and may be partitioned into 10 subframes of 1 ms each having indices 0-9. Each subframe may include a variable number of slots depending on the subcarrier spacing. Each slot may include a variable number of symbol periods (e.g., 7 to 14 symbols) depending on the subcarrier spacing. The symbol periods within each slot may be assigned an index. A minislot, sometimes referred to as a subslot structure, refers to a transmission time interval having a duration shorter than one slot (e.g., 2, 3, or 4 symbols). In some aspects, the subframes of the frame format 200 may be implemented using cross-carrier scheduling, as described in more detail herein.

[0028] FIG. 3 illustrates an example operation for cross-carrier scheduling. Four CCs are shown, referred to as CC1, CC2, CC3, and CC4. CC1 may include a physical downlink control channel (PDCCH) 302 that includes control information applicable to both CC1 and CC3. For example, CC1 may schedule resources for data transmission in both CC1 and CC3. CC1 may be referred to as a scheduling CC, and CC2 may be referred to as a scheduled CC. In some cases, each component carrier may be associated with a cell. Although only four CCs are shown in FIG. 3, any number of CCs may be implemented, and each of the CCs is associated with a frequency range (FR). In some cases, multiple CCs may be part of the same FR. For example, CC3 and CC4 may be part of a first FR (FR1), and CC1 and CC2 may be part of a second FR (FR2). The configuration of each FR may be different. For example, FR1 may have a smaller bandwidth (BW) than FR2, but has fewer blocking issues. FR1 may have a lower subcarrier spacing (SCS) than FR2. For example, FR1 may have an SCS of 60, while FR2 may have an SCS of 120.

[0029] Exemplary Techniques for Cross-Carrier Retransmission As described with respect to FIG. 3, each user equipment (UE) may be configured with a single scheduling carrier component (CC) for cross-carrier scheduling. For example, a base station (BS) 110 (e.g., a gNB) may use CC1 on a second frequency resource (FR2) to schedule transmissions on CC2 and CC3. However, if a single scheduling CC fails (e.g., decoding of downlink control information (DCI) on the scheduling CC fails at the UE), the BS 110 must signal a new scheduling CC to the UE (e.g., via an RRC reconfiguration process), which may increase latency. In some aspects of the present disclosure, the BS 110 may signal multiple signaling CCs to the UE, and any one of the scheduling CCs may perform cross-carrier scheduling. For example, the BS 110 may signal (e.g., configure) two scheduling CCs as CC1 and CC2 for cross-carrier scheduling, each of which may schedule one or more transmissions on any one of CC1, CC2, CC3, and CC4. For example, if CC1 schedules a transmission on CC2, CC2 may further schedule a transmission on CC3, CC4, or back to CC1 again. In some aspects, a single scheduling CC may be pre-configured, and the scheduling CC may designate another CC as a new scheduling CC, as described in more detail herein.

[0030] 4 is a flow diagram illustrating example operations 400 for wireless communication in accordance with certain aspects of the present disclosure. The operations 400 may be performed, for example, by a UE (such as, for example, the UE 120a in the wireless communication network 100).

[0031] The operations 400 may be implemented as software components executed and run on one or more processors (e.g., controller / processor 1080 of FIG. 10). Additionally, transmission and reception of signals by the UE in the operations 400 may be enabled, for example, by one or more antennas (e.g., antenna 1052 of FIG. 10). In some aspects, transmission and / or reception of signals by the UE may be implemented via a bus interface of one or more processors (e.g., controller / processor 1080) that acquire and / or output the signals.

[0032] The operations 400 may begin at block 405 by the UE receiving a configuration of resources on multiple signaling entities for reception of multiple control messages, each of the multiple control messages scheduling resources on a signaling entity different from one of the multiple signaling entities at which the control message is to be received. At block 410, the UE monitors the configured resources on the multiple signaling entities for the multiple control messages. As used herein, a "signaling entity" refers to a frequency resource, a cell, or a CC.

[0033] In some aspects, the resource configuration may be received via downlink control information, a medium access control control element (MAC-CE), or a radio resource control (RRC) message. In some cases, a first control message of the plurality of control messages is to be received from a first transmission point and a second control message of the plurality of control messages is to be received from a second transmission point.

[0034] In some cases, the plurality of control messages may include a first control message and a second control message. The first control message received via one of the plurality of signaling entities may indicate resources on another of the plurality of signaling entities for reception of the second control message. For example, the first control message specifies switching of control for resource scheduling from one of the plurality of signaling entities to the other of the plurality of signaling entities.

[0035] 5 is a flow diagram illustrating example operations 500 for wireless communication according to certain aspects of the disclosure. The operations 500 may be performed, for example, by a BS (such as, for example, BS 110a in wireless communication network 100). The operations 500 may be complementary operations by the BS to the operations 400 performed by a UE.

[0036] The operations 500 may be implemented as software components executed and run on one or more processors (e.g., controller / processor 1040 of FIG. 10). Additionally, the transmission and reception of signals by the BS in the operations 500 may be enabled, for example, by one or more antennas (e.g., antenna 1034 of FIG. 13). In some aspects, the transmission and / or reception of signals by the BS may be implemented via a bus interface of one or more processors (e.g., controller / processor 1040) that acquire and / or output the signals.

[0037] The operations 500 may begin, at block 505, by the BS determining a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received. At block 510, the BS may transmit an indication of the resource configuration to the UE.

[0038] 6 illustrates multiple scheduling CCs according to some aspects of the disclosure. In some aspects, both CC1 and CC2 may be pre-configured as scheduling CCs via DCI, MAC-CE, or radio resource control (RRC) messages. Thus, as shown, PDCCH 302 on CC1 may be used to schedule resources on CC1 and CC2, and PDCCH 602 on CC2 may be used to schedule resources on CC2, CC3, CC4, or even CC1.

[0039] In some aspects, instead of both CC1 and CC2 being pre-configured as scheduling CCs (e.g., via DCI, MAC-CE, or RRC messages), only one of the CCs (e.g., CC1) may be configured as a scheduling CC (e.g., a primary CC) and may specify (e.g., indicate to the UE 120) that CC2 serves as the scheduling CC, as represented by curve 604. For example, the physical downlink control channel (PDCCH) 302 on CC1 may schedule resources for reception of the PDCCH 602 for cross-carrier scheduling on CC2. In this case, if decoding of CC1 fails at the UE, DCI, MAC-CE, or RRC messaging may be used to configure a new CC (e.g., CC2) as the scheduling CC.

[0040] 7A, 7B, 7C, and 7D illustrate example operations for configuring multiple scheduling CCs according to some aspects of the present disclosure. As shown in FIG. 7A, a TRP (e.g., BS 110) may transmit a message (e.g., DCI, MAC-CE, or RRC message) to UE 120 to configure multiple scheduling CCs. In block 704, the UE may monitor a PDCCH 706 on a scheduling CC for cross-carrier scheduling. As shown in FIG. 7B, the configured CCs may be associated with different TRPs. For example, as shown, a PDCCH on one of the scheduling CCs may be transmitted by TRP1 (e.g., BS 110) and a PDCCH on another of the scheduling CCs may be transmitted by TRP2 111. In some aspects, as shown, TRP1 may send a message 720 to TRP2 indicating channel measurement information associated with candidate CCs for prompting cross-carrier scheduling.

[0041] In some aspects, one of the scheduling CCs may designate another CC as a scheduling CC. For example, as shown in FIG. 7C, the message 702 may configure a single scheduling CC (e.g., a primary CC). In block 704, the UE may monitor the PDCCH 706 on the scheduling CC. The PDCCH 706 may then designate another CC to serve as a new scheduling CC. Thus, the UE may monitor the PDCCH 712 on the new scheduling CC in block 710. As shown in FIG. 7D, the scheduling CCs may be associated with different TRPs. For example, the PDCCH 706 may be transmitted by TRP1 on its scheduling CC, and the PDCCH 712 may be transmitted by TRP2 on another scheduling CC. For example, TRP1 110 may be experiencing interference and, as a result, may switch control for cross-carrier scheduling to TRP2. In some cases, it may be advantageous to have TRP2 perform cross-carrier scheduling. For example, TRP2 may have lower latency. Therefore, for packets requiring lower latency, it may be advantageous to designate TRP2 for cross-carrier scheduling. In some aspects, as shown, TRP1 can send a message 720 to TRP2 indicating channel measurement information associated with candidate CCs for facilitating cross-carrier scheduling.

[0042] 8 shows a communications device 800 that may include various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as those illustrated in FIG. 4. The communications device 800 includes a processing system 802 coupled to a transceiver 808. The transceiver 808 is configured to transmit and receive signals for the communications device 800 via an antenna 810, such as various signals as described herein. The processing system 802 may be configured to perform processing functions for the communications device 800, including processing of signals to be received and / or transmitted by the communications device 800.

[0043] The processing system 802 includes a processor 804 coupled to a computer-readable medium / memory 812 via a bus 806. In some aspects, the computer-readable medium / memory 812 is configured to store instructions (e.g., computer-executable code) that, when executed by the processor 804, cause the processor 804 to perform the operations illustrated in FIG. 4 or other operations to perform various techniques discussed herein for channel measurement. In some aspects, the computer-readable medium / memory 812 stores code 814 for receiving and code 816 for monitoring. In some aspects, the processor 804 has circuitry configured to implement the codes stored in the computer-readable medium / memory 812. The processor 804 includes a circuit 824 for receiving and a circuit 826 for monitoring.

[0044] 9 illustrates a communications device 900 that may include various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as those illustrated in FIG. 5. The communications device 900 includes a processing system 902 coupled to a transceiver 908. The transceiver 908 is configured to transmit and receive signals for the communications device 900 via an antenna 910, such as various signals as described herein. The processing system 902 may be configured to perform processing functions for the communications device 900, including processing of signals to be received and / or transmitted by the communications device 900.

[0045] The processing system 902 includes a processor 904 coupled to a computer-readable medium / memory 912 via a bus 906. In some aspects, the computer-readable medium / memory 912 is configured to store instructions (e.g., computer-executable code) that, when executed by the processor 904, cause the processor 904 to perform the operations illustrated in FIG. 5 or other operations to perform various techniques discussed herein for cross-carrier retransmission. In some aspects, the computer-readable medium / memory 912 stores code for determining 914, code for transmitting 916, and code for sending 918. In some aspects, the processor 904 has circuitry configured to implement the codes stored in the computer-readable medium / memory 912. The processor 904 includes a circuit for determining 924, a circuit for transmitting 926, and a circuit for sending 928.

[0046] Exemplary Aspects

[0047] In a first aspect, a method for wireless communication by a user equipment (UE) includes receiving a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities at which the control message is to be received, and monitoring the configured resources on the plurality of signaling entities for the plurality of control messages.

[0048] In a second aspect, in combination with the first aspect, each of the plurality of signaling entities and the signaling entity comprises a frequency resource.

[0049] In a third aspect, in combination with one or more of the first and second aspects, each of a plurality of signaling entities and the signaling entity comprises a component carrier (CC) or a cell.

[0050] In a fourth aspect, in combination with one or more of the first to third aspects, the multiple signaling entities comprise a first scheduling signaling entity and a second scheduling signaling entity, and a control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

[0051] In a fifth aspect, in combination with one or more of the first to fourth aspects, the resource configuration is received via downlink control information, a medium access control control element (MAC-CE), or a radio resource control (RRC) message.

[0052] In a sixth aspect, in combination with one or more of the first to fifth aspects, a first control message of the plurality of control messages is to be received from a first transmission point, and a second control message of the plurality of control messages is to be received from a second transmission point.

[0053] In a seventh aspect, in combination with one or more of the first to sixth aspects, the plurality of control messages includes a first control message and a second control message, and the first control message received via one of the plurality of signaling entities indicates resources on another signaling entity of the plurality of signaling entities for reception of the second control message.

[0054] In an eighth aspect, in combination with the seventh aspect, the first control message specifies switching of control for resource scheduling from one of the plurality of signaling entities to another of the plurality of signaling entities.

[0055] In a ninth aspect, a method of wireless communication includes determining a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received, and transmitting an indication of the resource configuration to a UE.

[0056] In a tenth aspect, in combination with the ninth aspect, each of the plurality of signaling entities and the signaling entity comprises a frequency resource.

[0057] In an eleventh aspect, in combination with one or more of the ninth and tenth aspects, each of the plurality of signaling entities and the signaling entity comprises a CC or a cell.

[0058] In a twelfth aspect, in combination with one or more of the ninth to eleventh aspects, the plurality of signaling entities comprises a first scheduling signaling entity and a second scheduling signaling entity, and a control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

[0059] In a thirteenth aspect, in combination with one or more of the ninth to twelfth aspects, the resource configuration is indicated via downlink control information, a MAC-CE, or an RRC message.

[0060] In a fourteenth aspect, in combination with one or more of the ninth to thirteenth aspects, the method is performed by a first transmission point, the method further comprising the step of transmitting a first control message of the plurality of control messages to a UE, and a second control message of the plurality of control messages is to be received by the UE via one of a plurality of signaling entities associated with the second transmission point.

[0061] In a fifteenth aspect, in combination with the fourteenth aspect, the method further includes a step of sending channel measurement information to the second transmission point via a second control message, the channel measurement information being used for resource scheduling.

[0062] In a sixteenth aspect, in combination with one or more of the ninth to fifteenth aspects, the plurality of control messages include a first control message and a second control message, and the method further includes transmitting, via one of the plurality of signaling entities, the first control message indicating resources on another signaling entity of the plurality of signaling entities for reception of the second control message.

[0063] In a seventeenth aspect, in combination with the sixteenth aspect, the first control message specifies switching of control for resource scheduling from one of the plurality of signaling entities to another of the plurality of signaling entities.

[0064] In an eighteenth aspect, an apparatus for wireless communication includes a memory and one or more processors coupled to the memory, where the one or more processors and the memory are configured to: receive a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, where each of the plurality of control messages schedules resources on a signaling entity different from one of the plurality of signaling entities for which the control message is to be received; and monitor the configured resources on the plurality of signaling entities for the plurality of control messages.

[0065] In a nineteenth aspect, in combination with the eighteenth aspect, each of the plurality of signaling entities and the signaling entity comprises a frequency resource.

[0066] In a twentieth aspect, in combination with one or more of the eighteenth and nineteenth aspects, each of the plurality of signaling entities and the signaling entity comprises a CC or a cell.

[0067] In a 21st aspect, in combination with one or more of the 18th to 20th aspects, the multiple signaling entities comprise a first scheduling signaling entity and a second scheduling signaling entity, and a control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

[0068] In a twenty-second aspect, in combination with one or more of the eighteenth to twenty-first aspects, the resource configuration is received via downlink control information, a MAC-CE, or an RRC message.

[0069] In a 23rd aspect, in combination with one or more of the 18th to 22nd aspects, a first control message of the plurality of control messages is to be received from a first transmission point, and a second control message of the plurality of control messages is to be received from a second transmission point.

[0070] In a 24th aspect, in combination with one or more of the 18th to 23rd aspects, the multiple control messages include a first control message and a second control message, and the first control message received via one of the multiple signaling entities indicates resources on another signaling entity of the multiple signaling entities for reception of the second control message.

[0071] In a 25th aspect, in combination with the 24th aspect, the first control message specifies switching of control for resource scheduling from one of the multiple signaling entities to another of the multiple signaling entities.

[0072] In a twenty-sixth aspect, an apparatus for wireless communication includes a memory and one or more processors coupled to the memory, where the one or more processors and the memory are configured to: determine a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, where each of the plurality of control messages schedules resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received; and transmit an indication of the resource configuration to a UE.

[0073] In a twenty-seventh aspect, in combination with the twenty-sixth aspect, each of the plurality of signaling entities and the signaling entity comprises a frequency resource.

[0074] In a twenty-eighth aspect, in combination with one or more of the twenty-sixth and twenty-seventh aspects, each of the plurality of signaling entities and the signaling entity comprises a CC or a cell.

[0075] In a 29th aspect, in combination with one or more of the 26th to 28th aspects, the multiple signaling entities comprise a first scheduling signaling entity and a second scheduling signaling entity, and a control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

[0076] In a 30th aspect, in combination with one or more of the 26th to 29th aspects, the resource configuration is indicated via downlink control information, MAC-CE, or an RRC message.

[0077] In a thirty-first aspect, an apparatus for wireless communication includes a processor and a memory coupled to the processor, wherein the processor and the memory are configured to perform a method of any one of the first to seventeenth aspects.

[0078] In a thirty-second aspect, an apparatus for wireless communication includes at least one means for performing the method of any one of the first to seventeenth aspects.

[0079] In a thirty-third aspect, a non-transitory computer-readable medium having code stored thereon for wireless communication includes a processor, a memory in electronic communication with the processor, and instructions stored in the memory and executable by the processor to cause an apparatus to perform a method of any one of the first to seventeenth aspects.

[0080] The electromagnetic spectrum is often subdivided into various classes, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency range destinations FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz). Frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as the "sub-6 GHz" band in various documents and papers. Similar nomenclature issues may arise with respect to FR2, which is often referred to (interchangeably) as the "millimeter wave" band in documents and papers, even though it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) identified as the "millimeter wave" band by the International Telecommunications Union (ITU).

[0081] With the above aspects in mind, it should be understood that unless otherwise specified, terms such as "sub-6 GHz," as used herein, may broadly describe frequencies that may be below 6 GHz, may be within FR1, or may include mid-band frequencies. Additionally, it should be understood that unless otherwise specified, terms such as "millimeter wave," as used herein, may broadly describe frequencies that may include mid-band frequencies, may be within FR2, or may be within the EHF band.

[0082] The techniques described herein may be used for various wireless communication technologies, such as NR (e.g., 5G NR), 3GPP Long Term Evolution (LTE), LTE-Advanced (LTE-A). Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), and other networks. The terms "network" and "system" are often used interchangeably. A CDMA network may implement a radio technology, such as Universal Terrestrial Radio Access (UTRA), cdma2000, and the like. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. cdma2000 covers IS-2000, IS-95, and IS-856 standards. A TDMA network may implement a radio technology such as Global System for Mobile Communications (GSM). An OFDMA network may implement a radio technology such as NR (e.g., 5G RA), Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMA, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and LTE-A are releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). cdma2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). NR is a new wireless communications technology under development.

[0083] The techniques described herein may be used for the wireless networks and radio technologies mentioned above, as well as other wireless networks and radio technologies. For clarity, aspects may be described herein using terminology commonly associated with 3G, 4G and / or 5G wireless technologies, although aspects of the present disclosure may be applied in other generation-based communication systems.

[0084] In 3GPP, the term "cell" may refer to a coverage area of ​​a Node B (NB) and / or NB subsystem serving this coverage area depending on the context in which the term is used. In an NR system, the terms "cell" and BS, next generation NodeB (gNB or gNodeB), access point (AP), distributed unit (DU), carrier, or transmit reception point (TRP) may be used interchangeably. A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or other types of cells. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs with an association with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs for users in the home, etc.). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS, and a BS for a femto cell may be referred to as a femto BS or a home BS.

[0085] A UE may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, customer premises equipment (CPE), cellular phone, smartphone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet computer, camera, gaming device, netbook, smartbook, ultrabook, appliance, medical device or equipment, biometric sensor / device, wearable device such as smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.), entertainment device (e.g., music device, video device, satellite radio, etc.), vehicle component or vehicle sensor, smart meter / sensor, industrial production equipment, global positioning system device, or any other suitable device configured to communicate over a wireless or wired medium. Some UEs may be considered machine type communication (MTC) devices or evolved MTC (eMTC) devices. MTC UEs and eMTC UEs may communicate with a BS, another device (e.g., a remote device), or some other entity, including, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, a location tag, etc. A wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices, which may be Narrowband IoT (NB-IoT) devices.

[0086] FIG. 10 illustrates example components 1000 of a BS 110a and a UE 120a (within the wireless network 100 of FIG. 1) that may be used to implement aspects of the present disclosure.

[0087] At the BS 110a, the transmit processor 1020 may receive data from a data source 1012 and control information from the controller / processor 1040. The control information may be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid ARQ indicator channel (PHICH), a PDCCH, a group common PDCCH (GC PDCCH), etc. The data may be for a PDSCH, etc. The processor 1020 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. The transmit processor 1020 may also generate reference symbols, such as for a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a cell-specific reference signal (CRS). A transmit (TX) multiple-input multiple-output (MIMO) processor 1030 may perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, and / or reference symbols, if applicable, and may provide output symbol streams to modulators (MODs) 1032a-t. Each modulator 1032 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The downlink signals from modulators 1032a-t may be transmitted via antennas 1034a-t, respectively.

[0088] At UE 120a, antennas 1052a-1052r may receive downlink signals from BS 110a and may provide received signals to demodulators within transceiver (DEMOD) 1054a-1054r, respectively. Each demodulator 1054 may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal and obtain input samples. Each demodulator may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 1056 may obtain the received symbols from all demodulators 1054a-1054r, perform MIMO detection on the received symbols, if applicable, and provide detected symbols. A receive processor 1058 may process (e.g., demodulate, deinterleave, and decode) the detected symbols and provide decoded data for UE 120a to a data sink 1060 and provide decoded control information to controller / processor 1080.

[0089] On the uplink, at the UE 120a, a transmit processor 1064 may receive and process data (e.g., for the Physical Uplink Shared Channel (PUSCH)) from a data source 1062 and control information (e.g., for the Physical Uplink Control Channel (PUCCH)) from a controller / processor 1080. The transmit processor 1064 may also generate reference symbols for a reference signal (e.g., for a Sounding Reference Signal (SRS)). The symbols from the transmit processor 1064 may be precoded by a TX MIMO processor 1066 if applicable, further processed by demodulators 1054a-1054r within the transceiver (e.g., for SC-FDM), and transmitted to the BS 110a. At BS 110a, the uplink signal from UE 120a may be received by antenna 1034, processed by a modulator 1032, detected by a MIMO detector 1036 if applicable, and further processed by a receive processor 1038 to obtain decoded data and control information sent by UE 120a. The receive processor 1038 may provide the decoded data to a data sink 1039 and the decoded control information to a controller / processor 1040.

[0090] The memories 1042 and 1082 may store data and program codes for the BS 110a and the UE 120a, respectively. The scheduler 1044 may schedule UEs for data transmission on the downlink and / or uplink.

[0091] The controller / processor 1080 and / or other processors and modules at the UE 120a may execute processes for the techniques described herein or may direct the execution of such processes. For example, as shown in FIG. 10, the controller / processor 1040 of the BS 110a has a scheduling manager 112 that may be configured for cross-carrier scheduling in accordance with aspects described herein. As shown in FIG. 10, the controller / processor 1080 of the UE 120a has a scheduling manager 122 that may be configured for cross-carrier scheduling in accordance with aspects described herein. Although shown in a controller / processor, other components of the UE 120a and the BS 110a that perform the operations described herein may be used.

[0092] Certain wireless networks (e.g., LTE) utilize orthogonal frequency division multiplexing (OFDM) on the downlink and single-carrier frequency division multiplexing (SC-FDM) on the uplink. OFDM and SC-FDM partition the system bandwidth into multiple (K) orthogonal subcarriers, also commonly referred to as tones, bins, etc. Each subcarrier may be modulated with data. Generally, modulation symbols are sent in the frequency domain with OFDM and in the time domain with SC-FDM. The spacing between adjacent subcarriers may be fixed, and the total number of subcarriers (K) may be dependent on the system bandwidth. For example, the subcarrier spacing may be 15 kHz, and the minimum resource allocation (called a "resource block" (RB)) may be 12 subcarriers (or 180 kHz). As a result, the nominal fast Fourier transform (FFT) size may be equal to 128, 256, 512, 1024, or 2048 for a system bandwidth of 1.25, 2.5, 5, 10, or 20 megahertz (MHz), respectively. The system bandwidth may also be partitioned into subbands. For example, a subband may cover 1.8 MHz (e.g., 6 RBs), and there may be 1, 2, 4, 8, or 16 subbands for a system bandwidth of 1.25, 2.5, 5, 10, or 20 MHz, respectively. In LTE, the basic transmission time interval (TTI) or packet duration is a 1 ms subframe.

[0093] NR may utilize OFDM with CP on the uplink and downlink and may include support for half-duplex operation using TDD. In NR, a subframe is still 1 ms, but the basic TTI is called a slot. A subframe contains a variable number of slots (e.g., 1, 2, 4, 8, 16, ... slots) depending on the subcarrier spacing. An NR RB is 12 consecutive frequency subcarriers. NR may support a base subcarrier spacing of 15 kHz, and other subcarrier spacings may be defined for the base subcarrier spacing, e.g., 30 kHz, 60 kHz, 120 kHz, 240 kHz, etc. The symbol and slot length correspond to the subcarrier spacing. The CP length also depends on the subcarrier spacing. Beamforming may be supported and the beam direction may be dynamically configured. MIMO transmission with precoding may also be supported. In some examples, MIMO configurations in the DL may support up to 8 transmit antennas with multi-layer DL transmission with up to 8 streams and up to 2 streams per UE. In some examples, multi-layer transmission with up to two streams per UE may be supported. Multiple cell aggregation may be supported with up to eight serving cells.

[0094] In some examples, access to the air interface may be scheduled. A scheduling entity (e.g., a BS) allocates resources for communication between some or all devices and equipment in its service area or cell. The scheduling entity may be responsible for scheduling, allocation, reconfiguration, and release of resources for one or more subordinate entities. That is, for scheduled communication, the subordinate entities utilize resources allocated by the scheduling entity. A base station is not the only entity that may function as a scheduling entity. In some examples, a UE may function as a scheduling entity and schedule resources for one or more subordinate entities (e.g., one or more other UEs), and the other UEs may utilize resources scheduled by a UE for wireless communication. In some examples, a UE may function as a scheduling entity in a peer-to-peer (P2P) network and / or in a mesh network. In a mesh network example, the UEs may communicate directly with each other in addition to communicating with the scheduling entity.

[0095] In some examples, two or more subordinate entities (e.g., UEs) can communicate with each other using sidelink signals. Real-world applications of such sidelink communications may include public safety, proximity services, UE-to-network relaying, vehicle-to-vehicle (V2V) communications, Internet of Everything (IoE) communications, IoT communications, mission-critical mesh, and / or various other suitable applications. In general, a sidelink signal may refer to a signal communicated from one subordinate entity (e.g., UE1) to another subordinate entity (e.g., UE2) without relaying that communication through a scheduling entity (e.g., UE or BS), even though a scheduling entity may be utilized for scheduling and / or control. In some examples, sidelink signals may be communicated using a licensed spectrum (unlike wireless local area networks, which generally use unlicensed spectrum).

[0096] The methods disclosed herein include one or more steps or actions for achieving the method. The steps and / or actions of the methods may be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order of steps or actions is specified, the order and / or use of specific steps and / or actions may be modified without departing from the scope of the claims.

[0097] As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items, including single members. As an example, "at least one of a, b, or c" is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination of multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other permutation of a, b, and c).

[0098] As used herein, the term "determining" encompasses a wide variety of actions. For example, "determining" may include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, database, or another data structure), ascertaining, and the like. Also, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), and the like. Also, "determining" may include resolving, selecting, electing, establishing, and the like.

[0099] The foregoing description is provided to enable any person skilled in the art to practice the various embodiments described herein. Various modifications of these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments. Thus, the claims are not intended to be limited to the embodiments set forth herein, but are to be accorded the full scope consistent with the language of the claims, and references to elements in the singular shall mean "one and only," rather than "one or more," unless expressly stated otherwise. Unless otherwise expressly stated, the term "several" refers to one or more. All structural and functional equivalents of the elements of the various embodiments described throughout this disclosure that are known or that later become known to those skilled in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is expressly recited in the claims. No element of a claim is to be construed under the provisions of 35 U.S.C. 35 Section 112(f) unless the element is expressly recited using the phrase "means for" or, in the case of a method claim, unless the element is recited using the phrase "step for."

[0100] The various operations of the methods described above may be performed by any suitable means capable of performing the corresponding functions, which may include various hardware and / or software components and / or modules, including but not limited to circuits, application specific integrated circuits (ASICs), or processors. Generally, where there are operations illustrated in figures, those operations may have corresponding equivalent means-plus-function components similarly numbered.

[0101] The various example logic blocks, modules, and circuits described in connection with this disclosure may be implemented or performed using a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), 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 commercially available processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0102] When implemented as hardware, an exemplary hardware configuration may comprise a processing system in a wireless node. The processing system may be implemented using a bus architecture. The bus may include any number of interconnecting buses and bridges depending on the particular application and overall design constraints of the processing system. The bus may link various circuits together, including a processor, a machine-readable medium, and a bus interface. The bus interface may be used to connect a network adapter to the processing system via the bus, among other things. The network adapter may be used to implement the signal processing functions of the PHY layer. In the case of a user terminal 120 (see FIG. 1), a user interface (e.g., keypad, display, mouse, joystick, etc.) may also be connected to the bus. The bus may also link various other circuits, such as timing sources, peripherals, voltage regulators, power management circuits, etc., which are well known in the art and therefore will not be described further. The processor may be implemented using one or more general-purpose and / or special-purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Those skilled in the art will recognize how to best implement the above described functionality for a processing system depending on the particular application and the overall design constraints imposed on the overall system.

[0103] If implemented in software, the functions may be stored on or transmitted over a computer-readable medium as one or more instructions or code. Software shall be broadly construed to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. Computer-readable media includes both computer storage media and communication media, including any medium that facilitates transfer of a computer program from one place to another. The processor may be responsible for managing the bus and general processing, including the execution of software modules stored in the machine-readable storage medium. The computer-readable storage medium may be coupled to the processor such that the processor can read information from and write information to the storage medium. Alternatively, the storage medium may be integral to the processor. By way of example, the machine-readable medium may include a transmission line, a carrier wave modulated by data, and / or a computer-readable storage medium on which instructions are stored separate from the wireless node, all of which may be accessed by the processor via a bus interface. Alternatively or additionally, the machine-readable medium, or any portion thereof, may be integrated into the processor, such as a cache and / or a general-purpose register file. Examples of the machine-readable storage medium may include a RAM (random access memory), a flash memory, a ROM (read-only memory), a PROM (programmable read-only memory), an EPROM (erasable programmable read-only memory), an EEPROM (electrically erasable programmable read-only memory), a register, a magnetic disk, an optical disk, a hard drive, or any other suitable storage medium, or any combination thereof. The machine-readable medium may be embodied in a computer program product.

[0104] A software module may comprise a single instruction or many instructions and may be distributed across several different code segments, among different programs, and across multiple storage media. A computer-readable medium may include several software modules. A software module includes instructions that, when executed by a device such as a processor, cause a processing system to perform various functions. A software module may include a transmitting module and a receiving module. Each software module may reside in a single storage device or may be distributed across multiple storage devices. As an example, a software module may be loaded from a hard drive into RAM when a trigger event occurs. During execution of a software module, a processor may load some of the instructions into a cache to increase access speed. One or more cache lines may then be loaded into a general-purpose register file to be executed by the processor. When referring to a function of a software module below, it will be understood that such function is implemented by a processor when executing instructions from that software module.

[0105] Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared (IR), radio, and microwave, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically and discs reproduce data optically using lasers. Thus, in some aspects computer-readable medium may comprise non-transitory computer-readable medium (e.g., tangible media). In addition, in other aspects, computer readable media may comprise transitory computer readable media (eg, a signal). Combinations of the above should also be included within the scope of computer readable media.

[0106] Thus, some aspects may include a computer program product for performing the operations presented herein. For example, such a computer program product may include instructions executable by one or more processors to perform the operations described herein, e.g., a computer-readable medium having stored thereon (and / or encoded thereon) instructions for performing the operations described herein.

[0107] Further, it should be understood that modules and / or other suitable means for performing the methods and techniques described herein may be downloaded and / or otherwise obtained by a user terminal and / or base station, where applicable. For example, such devices may be coupled to a server to facilitate the transfer of means for performing the methods described herein. Alternatively, the various methods described herein may be provided via a storage means (e.g., a physical storage medium such as RAM, ROM, a compact disk (CD) or a floppy disk) such that the user terminal and / or base station may obtain the various methods upon coupling or providing the storage means to the device. Furthermore, any other suitable technique for providing the methods and techniques described herein to a device may be utilized.

[0108] It is to be understood that the claims are not limited to the precise configuration and components illustrated above. Various modifications, changes and variations may be made in the arrangement, operation and details of the methods and apparatus described above without departing from the scope of the claims. [Explanation of symbols]

[0109] 100 Wireless Communication Networks 102x picocell 102y Femtocell 102z Femtocell 110 Base Station (BS) 110a base station, BS 110r relay station, relay 110z base station, BS 111 TRP, TRP2 112 Scheduling Manager 120 User Equipment (UE) 120a~120y User Equipment (UE) 122 Scheduling Manager 130 Network Controller 200 Frame Format 302 Physical Downlink Control Channel (PDCCH) 400 operations 500 operations 602 PDCCH 604 Curve 702 Messages 706 PDCCH 712 PDCCH 720 Messages 800 Communication Devices 802 Processing System 804 Processor 806 Bus 808 Transceiver 810 Antenna 812 Computer-readable medium / memory 814 Receive Code 816 Code to Monitor 824 Receiving circuit 826 Monitoring Circuit 900 Communication Devices 902 Processing System 904 Processor 906 Bus 908 Transceiver 910 Antenna 912 Computer-readable medium / memory 914 Code for determining 916 Code to send 918 Sending Code 924 Circuit for determining 926 Transmitting Circuit 928 Sending Circuit 1000 components 1012 Data Source 1020 Transmit Processor 1030 Transmit (TX) Multiple Input Multiple Output (MIMO) Processor 1032 Modulator 1032a~1032t Modulator (MOD) 1034 Antenna 1034a~1034t Antenna 1036 MIMO Detector 1038 Receive Processor 1039 Data Sink 1040 Controller / Processor 1042 Memory 1044 Scheduler 1052a~1052r Antenna 1054 Demodulator 1054a~1054r Demodulator 1056 MIMO Detector 1058 Receive Processor 1060 Data Sink 1062 Data Source 1064 Transmit Processor 1066 TX MIMO Processor 1080 Controller / Processor 1082 Memory

Claims

1. 1. A method for wireless communication by a user equipment (UE), comprising: receiving a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received; monitoring the configured resources on the signaling entities for the control messages; A method comprising:

2. The method of claim 1 , wherein each of the plurality of signaling entities and the signaling entity comprises a frequency resource.

3. The method of claim 1 , wherein each of the plurality of signaling entities and the signaling entity comprises a component carrier (CC) or a cell.

4. the plurality of signaling entities comprises a first scheduling signaling entity and a second scheduling signaling entity; The method of claim 1 , wherein the control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

5. 10. The method of claim 1, wherein the configuration of the resources is received via downlink control information, a medium access control control element (MAC-CE), or a radio resource control (RRC) message, or any combination thereof.

6. a first control message of the plurality of control messages is received from a first transmission point; A second control message of the plurality of control messages is received from a second transmission point. The method of claim 1.

7. the plurality of control messages includes a first control message and a second control message; 2. The method of claim 1, wherein the first control message received via one of the plurality of signaling entities indicates the resources on another of the plurality of signaling entities for reception of the second control message.

8. 8. The method of claim 7, wherein the first control message specifies switching of control for resource scheduling from one of the plurality of signaling entities to the other of the plurality of signaling entities.

9. 1. A method for wireless communication, comprising: determining a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, each of the plurality of control messages scheduling resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received; transmitting an indication of the configuration of the resources to a user equipment (UE); A method comprising:

10. 10. The method of claim 9, wherein each of the plurality of signaling entities and the signaling entity comprises a frequency resource.

11. 10. The method of claim 9, wherein each of the plurality of signaling entities and the signaling entity comprises a component carrier (CC) or a cell.

12. the plurality of signaling entities comprises a first scheduling signaling entity and a second scheduling signaling entity; 10. The method of claim 9, wherein the control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

13. 10. The method of claim 9, wherein the configuration of the resources is indicated via downlink control information, a medium access control control element (MAC-CE), or a radio resource control (RRC) message, or any combination thereof.

14. the method being performed by a first transmission point; The method further includes transmitting a first control message of the plurality of control messages to the UE; A second control message of the plurality of control messages is to be received by the UE via one of the plurality of signaling entities associated with a second transmission point. The method of claim 9.

15. sending channel measurement information to the second transmission point via the second control message to be used for the scheduling of the resources; 15. The method of claim 14, further comprising:

16. the plurality of control messages includes a first control message and a second control message; The method further includes transmitting, via one of the plurality of signaling entities, the first control message indicating resources on another of the plurality of signaling entities for reception of the second control message. The method of claim 9.

17. 17. The method of claim 16, wherein the first control message specifies switching of control for resource scheduling from one of the plurality of signaling entities to the other of the plurality of signaling entities.

18. An apparatus for wireless communication, Memory, one or more processors coupled to the memory; 11. An apparatus comprising: receiving a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, receiving a plurality of control messages, each of which schedules resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received; monitoring the configured resources on the signaling entities for the control messages; and An apparatus configured to:

19. 20. The apparatus of claim 18, wherein each of the plurality of signaling entities and the signaling entity comprises a frequency resource.

20. 20. The apparatus of claim 18, wherein each of the plurality of signaling entities and the signaling entity comprises a component carrier (CC) or a cell.

21. the plurality of signaling entities comprises a first scheduling signaling entity and a second scheduling signaling entity; 20. The apparatus of claim 18, wherein the control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

22. 20. The apparatus of claim 18, wherein the configuration of the resources is received via downlink control information, a medium access control control element (MAC-CE), or a radio resource control (RRC) message.

23. a first control message of the plurality of control messages is received from a first transmission point; A second control message of the plurality of control messages is received from a second transmission point.

20. The apparatus of claim 18.

24. the plurality of control messages includes a first control message and a second control message; 20. The apparatus of claim 18, wherein the first control message received via one of the plurality of signaling entities indicates the resources on another of the plurality of signaling entities for reception of the second control message.

25. 25. The apparatus of claim 24, wherein the first control message specifies switching control for resource scheduling from one of the plurality of signaling entities to the other of the plurality of signaling entities.

26. An apparatus for wireless communication, Memory, one or more processors coupled to the memory; 11. An apparatus comprising: determining a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, determining that each of the plurality of control messages schedules resources on a signaling entity different from one of the plurality of signaling entities on which the control message is to be received; transmitting an indication of the configuration of the resources to a user equipment (UE); An apparatus configured to:

27. 27. The apparatus of claim 26, wherein each of the plurality of signaling entities and the signaling entity comprises a frequency resource.

28. 27. The apparatus of claim 26, wherein each of the plurality of signaling entities and the signaling entity comprises a component carrier (CC) or a cell.

29. the plurality of signaling entities comprises a first scheduling signaling entity and a second scheduling signaling entity; 27. The apparatus of claim 26, wherein the control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

30. 27. The apparatus of claim 26, wherein the configuration of the resources is indicated via downlink control information, a medium access control control element (MAC-CE), or a radio resource control (RRC) message, or any combination thereof.

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