Multiple cross-carrier scheduling component carriers (cc)

Abstract

Certain aspects of the present disclosure generally relate to a method for wireless communication. The method generally includes receiving a configuration of resources on a plurality of signaling entities for receiving a plurality of control messages, wherein 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.

Description

[0001] This application is a divisional application of the invention patent application entitled "Multiple Cross-Carrier Scheduling Component Carriers (CC)" with an international application date of June 18, 2020, application number 202080047618.7 and international application number PCT / US2020 / 038535.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This application claims priority to U.S. Application No. 16 / 904,348, filed on June 17, 2020, which claims the benefit of and priority to U.S. Provisional Application No. 62 / 870,991, filed on July 5, 2019, both of which are hereby assigned to the assignee of this application and are hereby expressly incorporated herein by reference as if fully set forth below and for all applicable purposes. Technical Field

[0004] Aspects of the present disclosure relate to wireless communications and, more particularly, to techniques for resource scheduling. Background Art

[0005] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcast, etc. 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 3rd Generation Partnership Project 3GPP Long Term Evolution LTE systems, Advanced LTE 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 just a few.

[0006] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, and even global level. New Radio, for example, 5G NR is an example of an emerging telecommunication standard. NR is an enhancement set of the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards using OFDMA with cyclic prefix CP on downlink DL and uplink UL. To this end, NR supports beamforming, multiple-input multiple-output MIMO antenna technology, and carrier aggregation.

[0007] However, as the demand for mobile broadband access continues to grow, there is a need for further improvements to NR and LTE technologies. Preferably, these improvements should be applicable to other multiple access technologies and the telecommunication standards that employ these technologies. Summary of the invention

[0008] The systems, methods, and devices of the present disclosure each have several aspects, no single one of which is solely responsible for its desirable attributes.Without limiting the scope of the disclosure as expressed by the following claims, some features will now be discussed briefly.

[0009] Certain aspects of the present disclosure are directed to a method for wireless communication. The method generally includes: receiving a configuration of resources on a plurality of signaling entities for receiving a plurality of control messages, wherein each of the plurality of control messages schedules 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.

[0010] Certain aspects of the present disclosure are directed to a method for wireless communication. The method generally includes: determining a configuration of resources on a plurality of signaling entities for receiving 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 the resources to a user equipment (UE).

[0011] Certain aspects of the present disclosure are directed to an apparatus for wireless communication. The apparatus generally includes: a memory; and one or more processors coupled to the memory, the one or more processors and the memory being configured to: receive a configuration of resources on a plurality of signaling entities for receiving a plurality of control messages, wherein 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 monitor the configured resources on the plurality of signaling entities for the plurality of control messages.

[0012] Certain aspects of the present disclosure are directed to an apparatus for wireless communication. The apparatus generally includes: means for receiving a configuration of resources on a plurality of signaling entities for receiving a plurality of control messages, wherein 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 means for monitoring the configured resources on the plurality of signaling entities for the plurality of control messages.

[0013] Certain aspects of the present disclosure relate to a computer-readable medium having computer-executable code stored thereon for wireless communication. The computer-readable medium generally includes: code for receiving a configuration of resources on a plurality of signaling entities for receiving a plurality of control messages, wherein 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 code for monitoring the configured resources on the plurality of signaling entities for the plurality of control messages.

[0014] Certain aspects of the present disclosure relate to an apparatus for wireless communication. The apparatus generally includes: a memory; and one or more processors coupled to the memory, the one or more processors and the memory being configured to: determine a configuration of resources on a plurality of signaling entities for receiving 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 transmit an indication of the configuration of the resources to a UE.

[0015] Certain aspects of the present disclosure are directed to an apparatus for wireless communication. The apparatus generally includes: means for determining a configuration of resources on a plurality of signaling entities for receiving 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 the resources to a UE.

[0016] Certain aspects of the present disclosure are directed to a computer-readable medium having computer-executable code stored thereon for wireless communication. The computer-readable medium generally includes code for determining a configuration of resources on a plurality of signaling entities for receiving 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 the resources to a UE.

[0017] To achieve the foregoing and related ends, one or more aspects include features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are only indicative of several of the various ways in which the principles of the various aspects can be employed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to understand in detail the manner in which the above-stated features of the present disclosure are used, a more particular description of the content briefly summarized above may be made with reference to various aspects, some of which are illustrated in the accompanying drawings. It should be noted, however, that the accompanying drawings illustrate only certain typical aspects of the present disclosure and are not to be considered limiting of its scope, as the description may admit to other equally effective aspects.

[0019] Figure 1 is a block diagram conceptually illustrating an example telecommunications system in accordance with certain aspects of the present disclosure.

[0020] Figure 2 is a diagram showing an example of a frame format.

[0021] Figure 3 Example operations for cross-carrier scheduling are illustrated.

[0022] Figure 4 is a flow diagram illustrating example operations for wireless communications by user equipment UE, in accordance with certain aspects of the present disclosure.

[0023] Figure 5 is a flow diagram illustrating example operations for wireless communications by a base station BS, in accordance with certain aspects of the present disclosure.

[0024] Figure 6 A plurality of scheduling component carriers CC are illustrated in accordance with certain aspects of the present disclosure.

[0025] Fig. 7A , 7B , 7C, and 7D illustrate example operations for configuring multiple scheduling CCs according to certain aspects of the present disclosure.

[0026] Figure 8 Illustrated are communications devices that may include various components configured to perform operations for the techniques disclosed herein in accordance with aspects of the present disclosure.

[0027] Fig. 9 Illustrated are communications devices that may include various components configured to perform operations for the techniques disclosed herein in accordance with aspects of the present disclosure.

[0028] Fig.10 is a block diagram conceptually illustrating designs of an example BS and UE in accordance with certain aspects of the present disclosure.

[0029] To facilitate understanding, identical reference numerals have been used, where possible, to designate identical elements that are common to the figures. It is contemplated that elements disclosed in one aspect may be beneficially utilized in other aspects without specific recitation. DETAILED DESCRIPTION

[0030] Various aspects of the present disclosure provide apparatus, methods, processing systems, and computer-readable media for resource scheduling. For example, certain 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 transmission on other CCs, as described in more detail herein. By scheduling multiple scheduling CCs, if the decoding of one of these scheduling CCs fails, the control information on another CC can still be decoded for cross-carrier scheduling. In some aspects, a scheduling CC can be used to designate another CC as a scheduling CC. For example, a preconfigured scheduling CC may indicate resources for receiving control messages on another CC to be used as a scheduling CC. Although certain aspects of the present disclosure are described with respect to CCs to facilitate understanding, various aspects of the present disclosure may be applied to any signaling entity, such as a frequency resource or a cellular cell. As used herein, a signaling entity refers to a CC, a frequency resource, or a cellular cell.

[0031] The following description provides an example of traffic burst perception in a communication system, but does not limit the scope, applicability or examples set forth in the claims. Changes may be made to the functions and arrangements of the elements discussed without departing from the scope of the present disclosure. Various examples may appropriately omit, replace, or add various procedures or components. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted, or combined. Moreover, the features described with reference to some examples may be combined in some other examples. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods practiced using other structures, functionalities, or structures and functionalities as supplements to the various aspects of the present disclosure set forth herein or in addition. It should be understood that any aspect of the present disclosure disclosed herein may be implemented by one or more elements of the claims. The wording "exemplary" is used herein to mean "used as an example, instance, or explanation". Any aspect described as "exemplary" herein need not be interpreted as being superior to or superior to other aspects.

[0032] In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a specific radio access technology RAT and may operate on one or more frequencies. RAT may also be referred to as radio technology, air interface, etc. Frequency may also be referred to as carrier, subcarrier, frequency channel, frequency modulation, subband, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, a 5G NR RAT network may be deployed.

[0033] Figure 1An example wireless communication network 100 is illustrated in which aspects of the present disclosure may be performed. For example, the wireless communication network 100 may be a NR system, e.g., a 5G NR network.

[0034] like Figure 1 As illustrated in the figure, the wireless communication network 100 may include several base stations BS110a-z, each of which is also individually referred to as BS110 or collectively referred to as BS110 and other network entities. BS110 may provide communication coverage for a specific geographic area, sometimes referred to as a "cell", which may be stationary or mobile depending on the location of the mobile BS110. In some examples, BS110 may be interconnected to each other and / or to one or more other BSs or network nodes in the wireless communication network 100 using any suitable transport network via various types of backhaul interfaces, such as direct physical connections, wireless connections, virtual networks, etc. (not shown). Figure 1 In the example shown in , BS110a, 110b and 110c can be macro BSs for macro cells 102a, 102b and 102c, respectively. BS110x can be a pico BS for a pico cell 102x. BS110y and 110z can be femto BSs for femto cells 102y and 102z, respectively. The BS can support one or more cells. BS110 communicates with user equipment UE120a-y in the wireless communication network 100, each of which is also individually referred to as UE120 or collectively referred to as UE 120 in this document. UE 120, for example, 120x, 120y, etc., can be dispersed throughout the wireless communication network 100, and each UE 120 can be stationary or mobile.

[0035] According to certain aspects, BS 110 and UE 120 may be configured for resource scheduling. Figure 1 As shown in , BS110a 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, 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, BS110 may transmit control signaling on one of the scheduling CCs, and TRP 111 may transmit control signaling on another of the scheduling CCs. In some aspects, BS110 may send information, such as channel measurement information, to TRP 111 to facilitate cross-carrier scheduling by TRP 111. As shown in FIG. Figure 1 As shown in FIG. 1 , UE 120a includes a scheduling manager 122. Scheduling manager 122 may be configured to receive configuration of multiple component carriers for cross-carrier scheduling according to aspects of the present disclosure.

[0036] The wireless communication network 100 may also include a relay station, for example, a relay station 110r, also referred to as a relay, etc., which receives transmissions of data and / or other information from an upstream station, for example, BS110a or UE 120r and sends transmissions of data and / or other information to a downstream station, for example, UE 120 or BS110, or which relays transmissions between UEs 120 to facilitate communication between the devices.

[0037] 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, for example, directly or indirectly, via a wireless or wired backhaul.

[0038] Figure 2 is a diagram showing an example of a frame format 200. The transmission timeline of each of the downlink and uplink may be divided into units of radio frames. Each radio frame may have a predetermined duration, for example, 10 ms, and may be divided into 10 subframes with indices 0 to 9, each subframe being 1 ms. Each subframe may include a variable number of slots, depending on the subcarrier spacing. Each slot may include a variable number of symbol periods, for example, 7 or 14 symbols, depending on the subcarrier spacing. An index may be assigned to the symbol period in each slot. A mini slot, which may be referred to as a subslot structure, refers to a transmission time interval having a duration less than a slot, for example, 2, 3, or 4 symbols. In certain aspects, the subframes of the frame format 200 may be implemented using cross-carrier scheduling, as described in more detail herein.

[0039] Figure 3 Example operations of cross-carrier scheduling are illustrated. Four CCs are illustrated, referred to as CC1, CC2, CC3, and CC4. CC1 may include a physical downlink control channel PDCCH 302, which 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 cellular cell. Although Figure 3 Only four CCs are explained in the figure, but any number of CCs can be implemented, each of which 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, while 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 have fewer blocking problems. FR1 may have a lower subcarrier spacing SCS than FR2. For example, the SCS of FR1 is 60, while the SCS of FR2 is 120.

[0040] Example Techniques for Cross-Carrier Retransmission

[0041] As about Figure 3 As described, each user equipment UE may be configured with a single scheduling carrier component CC for cross-carrier scheduling. For example, the base station BS110, for example, the gNB, may use CC1 on the second frequency resource FR2 to schedule transmissions on CC2 and CC3. However, if a single scheduling CC fails, for example, the decoding of the downlink control information DCI on the scheduling CC fails at the UE, then the BS110 may have to signal a new scheduling CC to the UE, for example, via an RRC reconfiguration process, which increases latency. In certain aspects of the present disclosure, the BS110 may signal multiple scheduling CCs to the UE, and any of these scheduling CCs may be cross-carrier scheduled. For example, the BS may signal, for example, two scheduling CCs configured for cross-carrier scheduling, CC1 and CC2, each of which may schedule one or more transmissions on any of CC1, CC2, CC3, and CC4. For example, if CC1 schedules transmissions on CC2, CC2 may further schedule transmissions on CC3, CC4, or return to CC1. In certain aspects, a single scheduling CC may be preconfigured, and the scheduling CC may designate another CC as a new scheduling CC, as described in greater detail herein.

[0042] Figure 4 4 is a flow diagram illustrating example operations 400 for wireless communications in accordance with certain aspects of the present disclosure. Operations 400 may be performed, for example, by a UE, such as UE 120a in wireless communication network 100, for example.

[0043] Operation 400 may be implemented on one or more processors, for example, Fig.10 In addition, signal transmission and reception by the UE in operation 400 may be performed by one or more antennas, for example, Fig.10 In some aspects, signal transmission and / or reception by the UE may be implemented via a bus interface of one or more processors, such as the controller / processor 1080, to obtain and / or output signals.

[0044] Operations 400 may begin, at block 405, with receiving, by the UE, a configuration of resources on a plurality of signaling entities for receiving a plurality of control messages, wherein 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. At block 410, the UE monitors the configured resources on the plurality of signaling entities for the plurality of control messages. As used herein, "signaling entity" refers to a frequency resource, a cell, or a CC.

[0045] In some aspects, the configuration of the resources may be received via a downlink control message, a media 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 received from a first transmission point, and a second control message of the plurality of control messages is received from a second transmission point.

[0046] In some cases, the multiple control messages may include a first control message and a second control message. The first control message received via one of the multiple signaling entities may indicate resources on another of the multiple signaling entities for receiving the second control message. For example, the first control message specifies that control for resource scheduling is switched from the one of the multiple signaling entities to the other of the multiple signaling entities.

[0047] Figure 5 5 is a flow diagram illustrating example operations 500 for wireless communications in accordance with certain aspects of the present disclosure. Operations 500 may be performed, for example, by a BS, such as BS 110a in wireless communication network 100. Operations 500 may be operations performed by a BS that are complementary to operations 400 performed by a UE.

[0048] Operation 500 may be implemented on one or more processors, for example, Fig.10 In addition, signal transmission and reception by the BS in operation 500 may be performed by one or more antennas, for example, Fig.10 In some aspects, signal transmission and / or reception by the BS may be implemented via a bus interface of one or more processors, such as controller / processor 1040, to obtain and / or output signals.

[0049] Operations 500 may begin, at block 505, with the BS determining a configuration of resources on a plurality of signaling entities for receiving 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 configuration of the resources to the UE.

[0050] Figure 6 Multiple scheduling CCs according to certain aspects of the present disclosure are illustrated. In certain aspects, both CC1 and CC2 can be pre-configured as scheduling CCs via DCI, MAC-CE, or radio resource control RRC messages. Thus, PDCCH 302 on CC1 can be used to schedule resources on CC1 and CC2, while PDCCH 602 on CC2 can be used to schedule resources on CC2, CC3, CC4, or even CC1, as illustrated.

[0051] In certain aspects, instead of pre-configuring both CC1 and CC2 as scheduling CCs, e.g., via DCI, MAC-CE, or RRC messages, one of these CCs, e.g., CC1, may be configured as a scheduling CC, e.g., a primary CC, and may be designated, e.g., indicated to UE 120, that CC2 is to be used as a scheduling CC, as represented by curve 604. For example, a physical downlink control channel PDCCH 302 on CC1 may schedule resources for receiving PDCCH 602 for cross-carrier scheduling on CC2. In this case, if decoding of CC1 fails at the UE, a new CC, e.g., CC2, may be configured as a scheduling CC using DCI, MAC-CE, or RRC messaging.

[0052] Fig. 7A , 7B , 7C, and 7D illustrate example operations for configuring multiple scheduling CCs according to certain aspects of the present disclosure. Fig. 7A As explained in TRP, for example, BS 110 may transmit a message, such as DCI, MAC-CE, or RRC message, to UE 120 to configure multiple scheduling CCs. In block 704, the UE may monitor PDCCH 706 for cross-carrier scheduling on these scheduling CCs. Figure 7B As illustrated in , the configured CCs may be associated with different TRPs. For example, a PDCCH on one of the scheduling CCs may be transmitted by TRP1, e.g., BS 110, while a PDCCH on another of the scheduling CCs may be transmitted by TRP2 111, as illustrated. In certain aspects, TRP1 may send a message 720 to TRP2 indicating channel measurement information associated with the candidate CCs to facilitate cross-carrier scheduling, as illustrated.

[0053] In some aspects, one of the scheduled CCs may designate another CC as the scheduled CC. Figure 7CAs illustrated in FIG. 7 , message 702 may configure a single scheduling CC, e.g., a primary CC. At block 704, the UE may monitor PDCCH 706 on the scheduling CC. PDCCH 706 may then designate another CC as a new scheduling CC. Accordingly, at block 710, the UE may monitor PDCCH 712 on the new scheduling CC. Fig.7D As explained in , the scheduling CCs may be associated with different TRPs. For example, PDCCH 706 may be transmitted by TRP1 on the scheduling CC, while PDCCH 712 may be transmitted by TRP2 on the other scheduling CC. For example, TRP 110 may be experiencing interference, and as a result control for cross-carrier scheduling may be switched to TRP2. In some cases, it may be advantageous to have TRP2 perform cross-carrier scheduling. For example, TRP2 may have a lower latency. Therefore, for packets requiring lower latency, it may be advantageous to designate TRP 2 for cross-carrier scheduling. In some aspects, TRP1 may send a message 720 to TRP2 indicating channel measurement information associated with a candidate CC to facilitate cross-carrier scheduling, as explained.

[0054] Figure 8 The illustrated method may include operations configured to perform the techniques disclosed herein such as, Figure 4 800. The various components of the operations illustrated in the foregoing correspond, for example, to means-plus-function components of the communication device 800. The communication device 800 includes a processing system 802 coupled to a transceiver 808. The transceiver 808 is configured to transmit and receive signals for the communication device 800, such as various signals as described herein, via an antenna 810. The processing system 802 may be configured to perform processing functions for the communication device 800, including processing signals received and / or to be transmitted by the communication device 800.

[0055] 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 a program that, when executed by the processor 804, causes the processor 804 to execute Figure 4 812 or instructions for performing other operations of the various techniques for channel measurement discussed herein, such as computer executable code. 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 a circuit system configured to implement the code stored in the computer readable medium / memory 812. The processor 804 includes a circuit system 824 for receiving and a circuit system 826 for monitoring.

[0056] Fig. 9The description may include operations configured to perform the techniques disclosed herein such as, Figure 5 900. The various components of the operations illustrated in the foregoing correspond, for example, to means-plus-function components of the communication device 900. The communication device 900 includes a processing system 902 coupled to a transceiver 908. The transceiver 908 is configured to transmit and receive signals for the communication device 900, such as various signals as described herein, via an antenna 910. The processing system 902 may be configured to perform processing functions for the communication device 900, including processing signals received and / or to be transmitted by the communication device 900.

[0057] 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 a program that, when executed by the processor 904, causes the processor 904 to execute Figure 5 912, or instructions for performing other operations for various techniques for cross-carrier retransmission discussed herein, such as computer executable code. 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 code stored in the computer-readable medium / memory 912. The processor 904 includes circuitry for determining 924, circuitry for transmitting 926, and circuitry for sending 928.

[0058] Example aspects

[0059] In a first aspect, a method for wireless communication by a user equipment (UE), comprises: receiving a configuration of resources on multiple signaling entities for receiving multiple control messages, wherein each of the multiple control messages schedules resources on a signaling entity different from one of the multiple signaling entities on which the control message will be received; and monitoring the configured resources on the multiple signaling entities to find the multiple control messages.

[0060] In a second aspect, in combination with the first aspect, the plurality of signaling entities and each of the signaling entities include frequency resources.

[0061] In a third aspect, in combination with one or more of the first and second aspects, the plurality of signaling entities and each of the signaling entities comprises a component carrier CC or a cellular cell.

[0062] In a fourth aspect, in combination with one or more of the first to third aspects, the multiple signaling entities include a first scheduling signaling entity and a second scheduling signaling entity, wherein a control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

[0063] In a fifth aspect, in combination with one or more of the first to fourth aspects, 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.

[0064] 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 received from a first transmission point, and a second control message of the plurality of control messages is received from a second transmission point.

[0065] In the seventh aspect, in combination with one or more of the first to sixth aspects, the multiple control messages include a first control message and a second control message, and wherein the first control message received via one of the multiple signaling entities indicates resources on another signaling entity of the multiple signaling entities for receiving the second control message.

[0066] In an eighth aspect, in combination with the seventh aspect, the first control message specifies that control for resource scheduling is switched from the one signaling entity among the multiple signaling entities to the other signaling entity among the multiple signaling entities.

[0067] In a ninth aspect, a method for wireless communication comprises: determining a configuration of resources on multiple signaling entities for receiving multiple control messages, each of the multiple control messages scheduling resources on a signaling entity different from a signaling entity of the multiple signaling entities on which the control message will be received; and transmitting an indication of the configuration of these resources to a UE.

[0068] In a tenth aspect, in combination with the ninth aspect, the plurality of signaling entities and each of the signaling entities include frequency resources.

[0069] In an eleventh aspect, in combination with one or more of the ninth and tenth aspects, the plurality of signaling entities and each of the signaling entities comprises a CC or a cellular cell.

[0070] In the twelfth aspect, in combination with one or more of the ninth to eleventh aspects, the multiple signaling entities include a first scheduling signaling entity and a second scheduling signaling entity, wherein the control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

[0071] In a thirteenth aspect, in combination with one or more of the ninth to twelfth aspects, the configuration of the resources is indicated via downlink control information, MAC-CE or RRC message.

[0072] In the fourteenth aspect, in combination with one or more of aspects nine to thirteen, the method is performed by a first transmission point; the method further includes transmitting a first control message among the multiple control messages to the UE; and a second control message among the multiple control messages will be received by the UE via a signaling entity among the multiple signaling entities associated with the second transmission point.

[0073] In a fifteenth aspect, in combination with the fourteenth aspect, the method further includes: sending channel measurement information to be used for scheduling the resource to the second transmission point via the second control message.

[0074] In the sixteenth aspect, in combination with one or more of aspects nine to fifteen, the multiple control messages include a first control message and a second control message, and the method further includes transmitting the first control message via one of the multiple signaling entities, the first control message indicating resources on another signaling entity among the multiple signaling entities for receiving the second control message.

[0075] In a seventeenth aspect, alone or in combination with the sixteenth aspect, the first control message specifies that control for resource scheduling is switched from one of the plurality of signaling entities to another of the plurality of signaling entities.

[0076] In an eighteenth aspect, a device for wireless communication comprises: a memory; and one or more processors coupled to the memory, the one or more processors and the memory being configured to: receive a configuration of resources on multiple signaling entities for receiving multiple control messages, wherein each of the multiple control messages schedules resources on a signaling entity different from a signaling entity among the multiple signaling entities on which the control message will be received; and monitor the configured resources on the multiple signaling entities to search for the multiple control messages.

[0077] In a nineteenth aspect, in combination with the eighteenth aspect, the plurality of signaling entities and each of the signaling entities include frequency resources.

[0078] In the twentieth aspect, in combination with one or more of the eighteenth and nineteenth aspects, the plurality of signaling entities and each of the signaling entities comprises a CC or a cell.

[0079] In aspect 21, in combination with one or more of aspects 18 to 20, the multiple signaling entities include a first scheduling signaling entity and a second scheduling signaling entity, wherein a control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

[0080] In a twenty-second aspect, in combination with one or more of the eighteenth to twenty-first aspects, the configuration of the resources is received via downlink control information, MAC-CE or RRC message.

[0081] In a twenty-third aspect, in combination with one or more of aspects eighteen to twenty-second, a first control message of the plurality of control messages is received from a first transmission point, and a second control message of the plurality of control messages is received from a second transmission point.

[0082] In aspect 24, in combination with one or more of aspects 18 to 23, the multiple control messages include a first control message and a second control message, and wherein the first control message received via one of the multiple signaling entities indicates resources on another signaling entity of the multiple signaling entities for receiving the second control message.

[0083] In a twenty-fifth aspect, in combination with the twenty-fourth aspect, the first control message specifies that control for resource scheduling is switched from one of the multiple signaling entities to another of the multiple signaling entities.

[0084] In a twenty-sixth aspect, an apparatus for wireless communication comprises: a memory; and one or more processors coupled to the memory, the one or more processors and the memory being configured to: determine a configuration of resources on multiple signaling entities for receiving multiple control messages, each of the multiple control messages scheduling resources on a signaling entity different from a signaling entity of the multiple signaling entities on which the control message will be received; and transmit an indication of the configuration of these resources to a UE.

[0085] In a twenty-seventh aspect, in combination with the twenty-sixth aspect, the plurality of signaling entities and each of the signaling entities include frequency resources.

[0086] In a twenty-eighth aspect, in combination with one or more of the twenty-sixth and twenty-seventh aspects, the plurality of signaling entities and each of the signaling entities comprises a CC or a cell.

[0087] In aspect twenty-ninth, alone or in combination with one or more of aspects twenty-six to twenty-eight, the multiple signaling entities include a first scheduling signaling entity and a second scheduling signaling entity, wherein a control message on the first scheduling signaling entity schedules resources on the second scheduling signaling entity.

[0088] In a thirtieth aspect, in combination with one or more of the twenty-sixth to twenty-ninth aspects, the configuration of the resources is indicated via downlink control information, MAC-CE or RRC message.

[0089] In a thirty-first aspect, an apparatus for wireless communication comprises: a processor and a memory coupled to the processor, wherein the processor and the memory are configured to execute a method as in any one of the first aspect to the seventeenth aspect.

[0090] In a thirty-second aspect, an apparatus for wireless communication comprises at least one device for performing a method as in any one of aspects one to seventeen.

[0091] In the thirty-third aspect, a non-transitory computer-readable medium storing code for performing wireless communication comprises: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in any one of aspects 1 to 17.

[0092] The electromagnetic spectrum is typically subdivided into various classes, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 410 MHz–7.125 GHz and FR2 24.25 GHz–52.6 GHz. Frequencies between FR1 and FR2 are typically 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 articles. Similar naming issues sometimes arise regarding FR2, although unlike the extremely high frequency EHF band 30 GHz–300 GHz identified as the “millimeter wave” band by the International Telecommunication Union ITU, FR2 is often referred to interchangeably as the “millimeter wave” band in various documents and articles.

[0093] In view of the above aspects, unless otherwise specifically stated, it should be understood that if used in this article, the term "sub-6 GHz" and the like can broadly represent frequencies that can be less than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if used in this article, the term "millimeter wave" and the like can broadly represent frequencies that can include mid-band frequencies, can be within FR2, or can be within the EHF band.

[0094] The technology described herein can be used for various wireless communication technologies, such as NR, for example, 5G NR, 3GPP Long Term Evolution LTE, Advanced LTE 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 can implement radio technologies such as Universal Terrestrial Radio Access UTRA, cdma2000, etc. UTRA includes wideband CDMA WCDMA and other variants of CDMA. Cdma2000 covers IS-2000, IS-95, and IS-856 standards. A TDMA network can implement radio technologies such as Global System for Mobile Communications GSM. OFDMA networks can implement radio technologies such as NR, 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 versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "Third Generation Partnership Project" 3GPP. cdma2000 and UMB are described in documents from an organization called the "Third Generation Partnership Project 2" 3GPP2. NR is an emerging wireless communication technology under development.

[0095] 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, although various aspects may be described herein using terms commonly associated with 3G, 4G and / or 5G wireless technologies, various aspects of the present disclosure may be applied in communication systems based on other generations.

[0096] In 3GPP, the term "cell" may refer to the coverage area of ​​a B node NB and / or a NB subsystem serving the coverage area, depending on the context in which the term is used. In NR systems, the term "cell" and BS, next-generation B node gNB or g B node, access point AP, distributed unit DU, carrier, or transmission reception point TRP may be used interchangeably. BS may provide communication coverage for macro cells, micro cells, femto cells, and / or other types of cells. Macro cells may cover a relatively large geographic area, for example, a radius of several thousand meters, and may allow unrestricted access by UEs with service subscriptions. Pico cells may cover a relatively small geographic area, and may allow unrestricted access by UEs with service subscriptions. Femto cells may cover a relatively small geographic area, for example, a residence, and may allow restricted access by UEs associated with the femto cells, for example, UEs in a closed subscriber group CSG, UEs of users in a residence, etc. A BS for a macro cell may be referred to as a macro BS. A BS for a micro cell may be referred to as a micro BS. A BS for a femto cell may be referred to as a femto BS or a home BS.

[0097] UE may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, client equipment CPE, cellular phone, smart phone, 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 medical equipment, biometric sensor / device, wearable device such as smart watch, smart clothing, smart glasses, smart wristband, smart jewelry such as smart ring, smart bracelet, etc., entertainment device such as music device, video device, satellite radio, etc., transportation tool component or sensor, smart meter / sensor, industrial manufacturing equipment, global positioning system device, or any other suitable device configured to communicate via wireless or wired medium. Some UEs may be considered as machine type communication MTC devices or evolved MTC eMTC devices. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a BS, another device such as a remote device or some other entity. A wireless node may provide connectivity for or to a network, e.g., a wide area network such as the Internet or a cellular network, e.g., 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.

[0098] Fig.10 For example, methods that can be used to implement various aspects of the present disclosure are described. Figure 11. Example components 1000 of a BS 110a and a UE 120a in a wireless communication network 100 of FIG.

[0099] At BS110a, a transmit processor 1020 may receive data from a data source 1012 and control information from a 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, for example, the encoding and symbol mapping 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 reference signal CRS that varies from cell to cell. The transmit TX multiple-input multiple-output MIMO processor 1030 may perform spatial processing, for example, precoding, on data symbols, control symbols, and / or reference symbols where applicable, and may provide an output symbol stream to modulators MOD1032a-1032t. 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-1032t may be transmitted via antennas 1034a-1034t, respectively.

[0100] At UE 120a, antennas 1052a-1052r may receive downlink signals from BS110a and may provide received signals to demodulators DEMOD in transceivers 1054a-1054r, respectively. Each demodulator 1054 may condition, for example, filter, amplify, downconvert, and digitize a respective received signal to obtain input samples. Each demodulator may further process the input samples, for example, for OFDM, etc. to obtain received symbols. A MIMO detector 1056 may obtain received symbols from all demodulators 1054a-1054r, perform MIMO detection on the received symbols where applicable, and provide detected symbols. A receive processor 1058 may process, for example, demodulate, deinterleave, and decode the detected symbols, provide decoded data for UE 120a to a data sink 1060, and provide decoded control information to a controller / processor 1080.

[0101] On the uplink, at the UE 120a, a transmit processor 1064 may receive and process data from a data source 1062, e.g., for a physical uplink shared channel, PUSCH, and control information from a controller / processor 1080, e.g., for a physical uplink control channel, PUCCH. The transmit processor 1064 may also generate reference symbols for reference signals, e.g., a sounding reference signal, SRS. The symbols from the transmit processor 1064 may be precoded by a TX MIMO processor 1066, where applicable, further processed by a demodulator 1054a-1054r in the transceiver, e.g., for SC-FDM, etc., and transmitted to the BS 110a. At the BS 110a, the uplink signal from the UE 120a may be received by the antenna 1034, processed by the modulator 1032, detected by the MIMO detector 1036, where applicable, and further processed by the receive processor 1038 to obtain decoded data and control information sent by the UE 120a. Receive processor 1038 may provide decoded data to data sink 1039 and decoded control information to controller / processor 1040 .

[0102] Memories 1042 and 1082 may store data and program codes for BS 110a and UE 120a, respectively.A scheduler 1044 may schedule UEs for data transmission on the downlink and / or uplink.

[0103] The controller / processor 1080 and / or other processors and modules at the UE 120a may perform or direct the execution of processes for the techniques described herein. Fig.10 As shown in FIG. 1 , the controller / processor 1040 of the BS 110a has a scheduling manager 112 that can be configured for cross-carrier scheduling according to various aspects described herein. Fig.10 As shown in FIG. 1 , the controller / processor 1080 of the UE 120a has a scheduling manager 122 that can be configured for cross-carrier scheduling according to various aspects described herein. Although shown at the controller / processor, other components of the UE 120a and BS 110a can also be used to perform the operations described herein.

[0104] Some wireless networks, such as LTE, use orthogonal frequency division multiplexing OFDM on the downlink and single carrier frequency division multiplexing SC-FDM on the uplink. OFDM and SC-FDM divide the system bandwidth into multiple K orthogonal subcarriers, which are also often referred to as frequency modulation, frequency slots, etc. Each subcarrier can be modulated with data. In general, modulation symbols are sent in the frequency domain for OFDM and in the time domain for SC-FDM. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers K can depend on the system bandwidth. For example, the spacing of subcarriers can be 15kHz, and the minimum resource allocation is called a "resource block" RB, which can be 12 subcarriers or 180kHz. Therefore, for a system bandwidth of 1.25, 2.5, 5, 10 or 20 megahertz MHz, the nominal fast Fourier transform FFT size can be equal to 128, 256, 512, 1024 or 2048, respectively. The system bandwidth can also be divided into subbands. For example, a subband may cover 1.8 MHz, eg, 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.

[0105] NR can utilize OFDM with CP on the uplink and downlink and includes support for half-duplex operation using TDD. In NR, a subframe is still 1ms, but the basic TTI is called a time slot. A subframe contains a variable number of time slots, for example, 1, 2, 4, 8, 16...time slots, depending on the subcarrier spacing. NR RB is 12 consecutive frequency subcarriers. NR can support a base subcarrier spacing of 15KHz, and other subcarrier spacings can be defined relative to the base subcarrier spacing, for example, 30kHz, 60kHz, 120kHz, 240kHz, etc. The symbol and time slot lengths scale with the subcarrier spacing. The CP length also depends on the subcarrier spacing. Beamforming can be supported and the beam direction can be dynamically configured. MIMO transmission with precoding can also be supported. In some examples, the MIMO configuration in DL can support up to 8 transmit antennas with up to 8 streams and up to 2 streams per UE. In some examples, multi-layer transmission of up to 2 streams per UE can be supported. Up to 8 serving cells may be used to support aggregation of multiple cells.

[0106] In some examples, access to the air interface may be scheduled. A scheduling entity, for example, a BS, allocates resources for communication between some or all devices and equipment within its service area or cell. A scheduling entity may be responsible for scheduling, assigning, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communications, subordinate entities utilize resources allocated by the scheduling entity. The base station is not the only entity that can be used as a scheduling entity. In some examples, a UE may be used as a scheduling entity, and resources for one or more subordinate entities, for example, one or more other UEs, may be scheduled, and other UEs may use the resources scheduled by the UE for wireless communications. In some examples, a UE may act as a scheduling entity in a peer-to-peer P2P network and / or in a mesh network. In a mesh network example, UEs may communicate directly with each other in addition to communicating with a scheduling entity.

[0107] In some examples, two or more subordinate entities, e.g., UEs, may communicate with each other using sidelink signals. Real-world applications of such sidelink communications may include public safety, proximity services, UE-to-network relay, vehicle-to-vehicle V2V communications, Internet of Everything IoE communications, IoT communications, mission-critical mesh networks, and / or various other suitable applications. Generally, a sidelink signal may refer to a signal transmitted from one subordinate entity, e.g., UE1, to another subordinate entity, e.g., UE2, without relaying the communication through a scheduling entity, e.g., UE or BS, even though the scheduling entity may be used for scheduling and / or control purposes. In some examples, a sidelink signal may be transmitted using a licensed spectrum, unlike a wireless local area network, which typically uses an unlicensed spectrum.

[0108] Each method disclosed herein includes one or more steps or actions for implementing the method. These method steps and / or actions can be interchangeable with each other 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 can be changed without departing from the scope of the claims.

[0109] 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 with multiple identical elements such as aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c.

[0110] As used herein, the term "determining" encompasses a wide variety of actions. For example, "determining" may include calculating, computing, processing, deriving, investigating, searching, e.g., searching in a table, a 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, choosing, establishing, and the like.

[0111] The previous description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be easily understood by those skilled in the art, and the universal principles defined herein can be applied to other aspects. Thus, the claims are not intended to be limited to the various aspects shown herein, but should be granted the full scope consistent with the language of the claims, wherein the singular reference to the element is not intended to mean "there is and only one" unless specifically stated as such but "one or more". Unless otherwise specifically stated, the term "some / some" refers to one or more. The elements of the various aspects described throughout this disclosure are all structural and functional equivalents currently or hereafter known to ordinary technicians in the art and are expressly incorporated herein by reference, and are intended to be covered by the claims. In addition, nothing disclosed herein is intended to be donated to the public, regardless of whether such disclosure is explicitly recorded in the claims. Any element of the claim should not be interpreted under the provisions of 35 U.S.C. §112 (f), unless the element is explicitly stated using the phrase "device for..." or in the case of a method claim, the element is stated using the phrase "device for...".

[0112] The various operations of the methods described above may be performed by any suitable device capable of performing the corresponding functions. These devices 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 the accompanying drawings, these operations may have corresponding paired device-plus-function components with similar numbers.

[0113] The various illustrative logical blocks, modules, and circuits described in conjunction with the present disclosure may be implemented or executed with 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 in an alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0114] If implemented in hardware, an example hardware configuration may include a processing system in a wireless node. The processing system may be implemented using a bus architecture. Depending on the specific application of the processing system and the overall design constraints, the bus may include any number of interconnecting buses and bridges. The bus may link together various circuits including a processor, a machine-readable medium, and a bus interface. The bus interface may be used to connect a network adapter, etc., to the processing system via the bus. The network adapter may be used to implement the signal processing functions of the PHY layer. See FIG. 1 for details. Figure 1 In the case of a user interface, such as a 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, and the like, which are well known in the art and will not be described further. The processor may be implemented with one or more general and / or special purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuit systems capable of executing software. Depending on the specific application and the overall design constraints imposed on the overall system, those skilled in the art will recognize how to best implement the functionality described with respect to the processing system.

[0115] If implemented in software, each function may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Software should be broadly interpreted to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or other. Computer-readable media include both computer storage media and communication media, which include any media that facilitate the transfer of computer programs from one place to another. The processor may be responsible for managing the bus and general processing, including executing software modules stored on a machine-readable storage medium. A computer-readable storage medium may be coupled to a processor so that the processor can read and write information from / to the storage medium. In an alternative, a storage medium may be integrated into a processor. As an example, a machine-readable medium may include a transmission line, a carrier modulated by data, and / or a computer-readable storage medium having instructions stored thereon that is separated from a wireless node, all of which may be accessed by a processor through a bus interface. Alternatively or additionally, a machine-readable medium or any part thereof may be integrated into a processor, such as a cache and / or a general register file, which may be the case. As an example, examples of machine-readable storage media may include RAM random access memory, flash memory, ROM read-only memory, PROM programmable read-only memory, EPROM erasable programmable read-only memory, EEPROM electrically erasable programmable read-only memory, registers, magnetic disks, optical disks, hard drives, or any other suitable storage media, or any combination thereof. Machine-readable media may be implemented in a computer program product.

[0116] A software module may include a single instruction, or many instructions, and may be distributed over several different code segments, between different programs, and across multiple storage media. A computer-readable medium may include several software modules. These software modules include instructions that cause a processing system to perform various functions when executed by equipment such as a processor. These software modules may include a transmission module and a reception module. Each software module may reside in a single storage device or may be distributed across multiple storage devices. As an example, when a triggering event occurs, a software module may be loaded into a RAM from a hard drive. During the execution of a software module, a processor may load some instructions into a cache to increase access speed. One or more cache lines may then be loaded into a general register file for execution by the processor. When describing the functionality of a software module as described below, it will be understood that such functionality is implemented by the processor when the processor executes instructions from the software module.

[0117] Any connection is also properly referred to as a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then 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. Disk and disc as used herein include compact disc, laser disc, optical disc, digital versatile disc, DVD, floppy disk, and Disks, where disks often reproduce data magnetically, and discs reproduce data optically with lasers. Thus, in some aspects, computer readable media may include non-transitory computer readable media, such as tangible media. Additionally, for other aspects, computer readable media may include transient computer readable media, such as signals. Combinations of the above should also be included within the scope of computer readable media.

[0118] Thus, some aspects may include a computer program product for performing the operations presented herein. For example, such a computer program product may include a computer-readable medium having stored and / or encoded thereon instructions that can be executed by one or more processors to perform the operations described herein, such as instructions for performing the operations described herein.

[0119] In addition, it should be appreciated that modules and / or other appropriate 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 a device can be coupled to a server to facilitate the transfer of means for performing the methods described herein. Alternatively, the various methods described herein can be provided via a storage device, for example, a RAM, a ROM, a physical storage medium such as a compact disc CD or a floppy disk, etc., so that once the storage device is coupled to or provided to a user terminal and / or base station, the device can obtain the various methods. In addition, any other suitable technology suitable for providing the methods and techniques described herein to a device may be utilized.

[0120] It will be understood that the claims are not limited to the precise configuration and components illustrated above. Various changes, substitutions 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.

Claims

1. An apparatus for wireless communication by a user equipment UE, comprising: one or more memories comprising instructions; and one or more processors, the one or more processors, individually or collectively, configured to execute the instructions and cause the apparatus to: receiving signaling indicating a plurality of cells including a first cell and a second cell for receiving a plurality of control messages, wherein: The first cell is used to schedule a first resource on at least the second cell across carriers, and the second cell is used to schedule the first resource on at least the second cell, and at least one of the plurality of control messages schedules the first resource on a cell different from one of the plurality of cells on which the at least one of the plurality of control messages is received; and Second resources across the plurality of cells are monitored for the plurality of control messages.

2. The apparatus of claim 1, wherein a control message on the first cell among the plurality of control messages schedules a third resource on the second cell.

3. The apparatus of claim 1, wherein the signaling is received via at least one of: downlink control information (DCI), a medium access control (MAC-CE), or a radio resource control (RRC) message.

4. The apparatus of claim 1, wherein the one or more processors, individually or collectively, are further configured to execute the instructions and cause the apparatus to: receiving a first control message of the plurality of control messages from a first transmission point; and A second control message of the plurality of control messages is received from a second transmission point.

5. The apparatus of claim 1 , wherein the plurality of control messages comprises a first control message and a second control message, and wherein the first control message received via the one of the plurality of cells indicates a fourth resource on another cell of the plurality of cells for receiving the second control message.

6. The apparatus of claim 5, wherein the first control message specifies switching control for resource scheduling from the one of the plurality of cells to the another of the plurality of cells.

7. An apparatus for wireless communication, comprising: one or more memories comprising instructions; and one or more processors, the one or more processors, individually or collectively, configured to execute the instructions and cause the apparatus to: A plurality of cells including a first cell and a second cell are determined for receiving a plurality of control messages, wherein: The first cell is used to schedule a first resource on at least the second cell across carriers, and the second cell is used to schedule the first resource on at least the second cell, and at least one of the plurality of control messages schedules the first resource on a cell different from one of the plurality of cells on which the at least one of the plurality of control messages is received; and Signaling indicating the plurality of cells is transmitted to user equipment (UE).

8. The apparatus of claim 7, wherein a control message on the first cell among the plurality of control messages schedules a third resource on the second cell.

9. The apparatus of claim 7, wherein the signaling is transmitted via at least one of: downlink control information (DCI), a medium access control-control element (MAC-CE), or a radio resource control (RRC) message.

10. The apparatus of claim 7, wherein: The device is configured as a first transmission point; The one or more processors, individually or collectively, are further configured to execute the instructions and cause the first transmission point to transmit a first control message of the plurality of control messages to the UE; and A second control message of the plurality of control messages is to be received by the UE via a cell of the plurality of cells associated with a second transmission point.

11. The apparatus of claim 10, wherein the one or more processors, individually or collectively, are further configured to execute the instructions and cause the first transmission point to: Channel measurement information to be used for scheduling fifth resources is transmitted to the second transmission point via the second control message.

12. The apparatus of claim 7, wherein: The plurality of control messages include a first control message and a second control message, and The one or more processors, individually or collectively, are further configured to execute the instructions and cause the apparatus to transmit the first control message via one of the plurality of cells, the first control message indicating fourth resources on another cell of the plurality of cells for receiving the second control message.

13. The apparatus of claim 12, wherein the first control message specifies switching control for resource scheduling from the one of the plurality of cells to the another of the plurality of cells.

14. A method for wireless communication by a user equipment UE, comprising: receiving signaling indicating a plurality of cells including a first cell and a second cell for receiving a plurality of control messages, wherein: The first cell is used to schedule a first resource on at least the second cell across carriers, and the second cell is used to schedule the first resource on at least the second cell, and at least one of the plurality of control messages schedules the first resource on a cell different from one of the plurality of cells on which the at least one of the plurality of control messages is received; and Second resources across the plurality of cells are monitored for the plurality of control messages.

15. The method of claim 14, wherein a control message on the first cell schedules a third resource on the second cell.

16. The method of claim 14, wherein the signaling is received via at least one of: downlink control information (DCI), a medium access control-control element (MAC-CE), or a radio resource control (RRC) message.

17. The method of claim 14, further comprising: receiving a first control message of the plurality of control messages from a first transmission point; as well as A second control message of the plurality of control messages is received from a second transmission point.

18. The method of claim 14, wherein the plurality of control messages include a first control message and a second control message, and wherein the first control message received via the one of the plurality of cells indicates a fourth resource on another cell of the plurality of cells for receiving the second control message.

19. The method of claim 18, wherein the first control message specifies switching control for resource scheduling from the one of the plurality of cells to the another of the plurality of cells.

20. A method for wireless communication, comprising: A plurality of cells including a first cell and a second cell are determined for receiving a plurality of control messages, wherein: The first cell is used to schedule a first resource on at least the second cell across carriers, and the second cell is used to schedule the first resource on at least the second cell, and at least one of the plurality of control messages schedules the first resource on a cell different from one of the plurality of cells on which the at least one of the plurality of control messages is received; and Signaling indicating the plurality of cells is transmitted to user equipment (UE).

21. The method of claim 20, wherein a control message on the first cell schedules a third resource on the second cell.

22. The method of claim 20, wherein the signaling is transmitted via at least one of: downlink control information (DCI), a medium access control-control element (MAC-CE), or a radio resource control (RRC) message.

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