Paging design with short message indicator

Abstract

Certain aspects of the present disclosure provide techniques for communicating in a wireless network. In one embodiment, a method includes monitoring a paging downlink control channel including downlink control information, wherein the downlink control information includes a first short message; processing the first short message; determining whether the downlink control information further includes scheduling information; processing the scheduling information if the downlink control information includes the scheduling information and the UE is not in a connected state; and ignoring the scheduling information if the downlink control information includes the scheduling information and the UE is in a connected state.

Description

[0001] This application is a divisional of Chinese Patent Application 201980031098.8 (PCT / US2019 / 031741), filed May 10, 2019, and entitled “Paging Design with Short Message Indicator.” TECHNICAL FIELD

[0002] Aspects of the present disclosure generally relate to wireless communication, and more particularly to techniques for providing a paging design with short message indicator. BACKGROUND

[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasts, etc. These wireless communication systems can employ multiple-access technologies capable of supporting communication with multiple users by sharing the available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple-access technologies include 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, time division synchronous code division multiple access (TD-SCDMA) systems, and others.

[0004] In some examples, a wireless multiple-access communication system can include a number of base stations (BSs), which are each capable of simultaneously supporting communication for multiple communication devices, otherwise known as user equipments (UEs). In an LTE or LTE-A network, a set of one or more base stations can define an eNodeB (eNB). In other examples (e.g., in a next generation, new radio (NR), or 5G network), a wireless multiple access communication system can include a number of distributed units (DUs) (e.g., edge units (EUs), edge nodes (ENs), radio heads (RHs), smart radio heads (SRHs), transmission reception points (TRPs), etc.) in communication with a number of central units (CUs) (e.g., central nodes (CNs), access node controllers (ANC), etc.), where a set of one or more distributed units, in communication with a central unit, can define an access node (e.g., which can be referred to as a base station, 5G NB, next generation NodeB (gNB or gNodeB), TRP, etc.). A base station or distributed unit can communicate with a set of UEs on downlink channels (e.g., for transmissions from a base station or to a UE) and uplink channels (e.g., for transmissions from a UE to a base station or distributed unit).

[0005] These multiple access technologies have been adopted in various telecommunication standards to provide common protocols that enable different wireless devices to communicate on a municipal, national, regional, and even global level. New Radio (NR), for example, is an example of an emerging telecommunication standard. NR is a set of enhancements to the LTE mobile standard promulgated by 3GPP. It is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using OFDMA with a cyclic prefix (CP) on the downlink (DL) and on the uplink (UL). To these ends, NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.

[0006] However, as the demand for mobile broadband access continues to increase, there exists a need for further improvements in NR and LTE technology. Preferably, these improvements should be applicable to other multi-access technologies and the telecommunication standards that employ these technologies. SUMMARY

[0007] The systems, methods, and devices of the disclosure each have several aspects, no single one of which is solely responsible for its desirable attributes. Without limiting the scope of this disclosure as expressed by the claims that follow, some features will now be discussed briefly. The instant disclosure will be described with reference to a portion of the 3GPP LTE wireless communication protocol, although the description is equally applicable to other wireless communication protocols, including 5G NR. The instant disclosure will be described with reference to a portion of the 3GPP LTE wireless communication protocol, although the description is equally applicable to other wireless communication protocols, including 5G NR. To the extent that the instant disclosure is not consistent with a portion of the 3GPP LTE wireless communication protocol, 5G NR, or the like, the instant disclosure will override the protocol portion.

[0008] Certain aspects provide a method for wireless communications by a user equipment (UE), comprising monitoring a paging downlink control channel comprising downlink control information, wherein the downlink control information comprises a first short message; processing the first short message; determining whether the control information further comprises scheduling information; processing the scheduling information if the downlink control information comprises scheduling information and the UE is not in a connected state; and ignoring the scheduling information if the downlink control information comprises scheduling information and the UE is in a connected state.

[0009] Certain aspects provide a method for wireless communications by a network, comprising transmitting a paging downlink control channel comprising downlink control information, wherein: the downlink control information comprises a first downlink control information message and a second downlink control information message, the first downlink control information message comprising a first short message, and the second downlink control information message comprising scheduling information and a second short message.

[0010] 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 various aspects can be employed. BRIEF DESCRIPTION OF DRAWINGS

[0011] So that the above-recited features of the present disclosure can be understood in detail, a more particular description, briefly summarized above, can be had by reference to various aspects, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered limiting of its scope, for the description can admit to other equally effective aspects.

[0012] Figure 1 is a block diagram conceptually illustrating an example telecommunications system, in accordance with certain aspects of the present disclosure.

[0013] Figure 2 is a block diagram illustrating an example logical architecture of a distributed radio access network (RAN), in accordance with certain aspects of the present disclosure.

[0014] Figure 3 is a diagram illustrating an example physical architecture of a distributed RAN, in accordance with aspects of the present disclosure.

[0015] Figure 4 is a block diagram conceptually illustrating a design of an example base station (BS) and user equipment (UE), in accordance with certain aspects of the present disclosure.

[0016] Figure 5 is a diagram illustrating an example for implementing a communication protocol stack, in accordance with aspects of the present disclosure.

[0017] Figure 6 illustrates an example of a frame format for a new radio (NR) system, in accordance with aspects of the present disclosure.

[0018] Figure 7 illustrates example operations for wireless communication by a user equipment (UE), in accordance with aspects of the present disclosure.

[0019] Figure 8 illustrates example operations for wireless communication by a network entity, in accordance with aspects of the present disclosure.

[0020] Figure 9 illustrates a communications device that can include various components configured to perform operations for the techniques described herein in accordance with aspects of the present disclosure.

[0021] Figure 10Communication devices that can include various components configured to perform the operations described herein for the techniques described herein are illustrated according to aspects of the present disclosure.

[0022] To facilitate understanding, like reference numbers are used to designate identical or like elements, which are beneficially the same across the various drawings. It is contemplated that elements disclosed in one aspect can be beneficially used in other aspects without specific recitation. DETAILED DESCRIPTION

[0023] Aspects of the disclosure provide apparatus, methods, processing systems, and computer readable media for providing paging with short message indicators.

[0024] The following description provides examples, and is not limiting of the scope, applicability, or examples set forth in the claims. Changes can be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples can omit, substitute, or add various procedures or components as appropriate. For instance, the methods described can be performed in an order different from that described, and various steps can be added, omitted, or combined. Also, features described with respect to some examples can be combined in some other examples. For example, an apparatus can be implemented or a method can be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method which accomplishes the same results in a different way or achieves the same results with less or more structure. It is understood that any aspect of the disclosure disclosed herein can 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.

[0025] The techniques described herein can be used for various wireless communication technologies, such as LTE, CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other networks. The terms“network” and“system” are often used interchangeably. A CDMA network can implement a radio technology 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 a radio technology such as Global System for Mobile Communications (GSM). An OFDMA network can 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 part of Universal Mobile Telecommunication System (UMTS). 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are releases of UMTS that use E-UTRA.

[0026] New Radio (NR) is an emerging wireless communications technology under development in conjunction with the 5G Technology Forum (5GTF). 3GPP Long Term Evolution (LTE) and LTE-Advanced (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). The techniques described herein can be used for the wireless

[0027] New radio (NR) access (e.g., 5G technology) can support various wireless communication services such as enhanced mobile broadband (eMBB) targeting wide bandwidth (e.g., 80 MHz or beyond), millimeter wave (mmW) targeting high carrier frequency (e.g., 25 GHz or beyond), massive machine type communications MTC (mMTC) targeting non-backward compatible MTC techniques, and / or mission critical targeting ultra-reliable low-latency communications (URLLC). These services can include latency and reliability requirements. These services can also have different transmission time intervals (TTI) to meet respective quality of service (QoS) requirements. In addition, these services can co-exist in the same subframe.

[0028] Example wireless communication system

[0029] Figure 1 An example wireless communication network 100 in which aspects of the present disclosure can be performed is illustrated. For example, the wireless communication network 100 can be a New Radio (NR) or 5G network.

[0030] As Figure 1 As illustrated in the example of FIG. 1, the wireless network 100 can include a number of base stations (BSs) 110 and other network entities. A BS can be a station that communicates with user equipment (UEs). Each BS 110 can provide communication coverage for a particular geographic area. In 3GPP, the term “cell” can refer to a coverage area of a Node B (NB) and / or a Node B subsystem serving the coverage area, depending on the context in which the term is used. In NR systems, the term “cell” and next generation NodeB (gNB), NR BS, 5G NB, access point (AP), or transmission reception point (TRP) can be interchangeable. In some examples, a cell can not necessarily be stationary, and the geographic area of the cell can move to another location depending on the position of a mobile BS. In some examples, the base stations can be interconnected to one another and / or to one or more other base stations or network nodes (not shown) in the wireless communication network 100 through various types of backhaul interfaces (such as a direct physical connection, a wireless connection, a virtual network, or the like using any suitable transport network).

[0031] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a particular radio access technology (RAT) and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, an air interface, etc. A frequency can also be referred to as a carrier, a subcarrier, a frequency channel, a tone, a subband, etc. Each frequency can support one or more communication services (e.g., voice, data, signaling, control, etc.). A RAT can use a single carrier or multiple carriers for transmission. A carrier can be a signal made up of multiple subcarriers (e.g., waves at different frequencies). Each subcarrier can be used to transmit information. In some examples, the subcarriers can be arranged in the frequency domain. In some examples, different subcarriers can be used to transmit different pieces of information. In other examples, the same subcarrier can be used to transmit different pieces of information at different times. In some examples, the subcarriers can be contiguous. In other examples, the subcarriers can be non-contiguous. In some examples, the subcarriers can be located in a separate frequency band. Carriers can be utilized for transmitting various types of data (e.g., control information, user data, etc.).

[0032] A base station (BS) can provide communication coverage for a macro cell, a pico cell, a femto cell, and / or other types of cell. A macro cell can cover a relatively large geographic area (e.g., several kilometers in radius) and can allow unrestricted access by UEs with service subscriptions. A pico cell can cover a relatively small geographic area and can allow unrestricted access by UEs with service subscriptions. A femto cell can cover a relatively small geographic area (e.g., a home) and can allow restricted access by UEs with associations to the femto cell (e.g., UEs in an closed subscriber group (CSG), UEs with an association indicator in their subscriber information, etc.). A BS for a macro cell can be referred to as a macro BS. A BS for a pico cell can be referred to as a pico BS. A BS for a femto cell can be referred to as a femto BS or a home BS. In Figure 1 In the example shown in FIG. 1, the BSs 110a, 110b and 110c can be macro BSs for the macro cells 102a, 102b and 102c, respectively. The BS 1 lOx can be a pico BS for a pico cell 102x. The BSs 1 lOy and 1 lOz can be femto BSs for the femto cells 102y and 102z, respectively. A BS can support one or multiple (e.g., three) cells.

[0033] The wireless communication network 100 can also include relay stations. A relay station is an entity that can receive a transmission of data and / or other information from an upstream station (e.g., a BS or a UE) and send a transmission of the data and / or other information to a downstream station (e.g., a UE or a BS). A relay station can also be a UE that can relay transmissions for other UEs. In Figure 1 In the example shown in FIG. 1, a relay station 1 lOr can communicate with the BS 110a and a UE 120r in order to facilitate communications between the BS 110a and the UE 120r. A relay station can also be referred to as a relay BS, a relay, etc.

[0034] The wireless network 100 can be a heterogeneous network that includes BSs of different types, e.g., macro BSs, pico BSs, femto BSs, relay, etc. These different types of BSs can have different transmit power levels, different coverage areas, and different impacts on interference in the wireless network 100. For example, macro BSs can have a high transmit power level (e.g., 20 Watts) whereas pico BSs, femto BSs and relays can have a lower transmit power level (e.g., 1 Watt).

[0035] The wireless communication network 100 can support synchronous or asynchronous operation. For synchronous operation, the BSs can have similar frame timing, and transmissions from different BSs can be approximately aligned in time. For asynchronous operation, the BSs can have different frame timing, and transmissions from different BSs can not be aligned in time. The techniques described herein can be used for both synchronous and asynchronous operation.

[0036] A network controller 130 can couple to a set of BSs and provide coordination and control for these BSs. Network controller 130 can be in communication with the BSs 110 via a backhaul. The BSs 110 can also communicate with one another (e.g., directly or indirectly) via wireless or wireline backhaul.

[0037] The UEs 120 (e.g., 120x, 120y, etc.) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. A UE can also be referred to as a mobile station, a terminal, an access terminal, a subscriber unit, a station, a Customer Premises Equipment (CPE), a cellular phone, a smartphone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a home entertainment device, a medical device or wearable, a biometric sensor / device, a wearable device such as a smartwatch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet, etc.), an entertainment device (e.g., a music device, a video device, a satellite radio, etc.), a vehicular component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium. Some UEs can be considered 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., that can communicate with a BS, another device (e.g., remote device), or some other entity. A wireless node can 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 can be considered Internet-of-Things (IoT) devices or Narrowband IoT (NB-IoT) devices.

[0038] Certain wireless networks (e.g., LTE) can 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, which are also commonly referred to as tones, bins, etc. Each subcarrier can be modulated with data. In general, modulation symbols are sent in the frequency domain with OFDM and in the time domain with SC-FDM. The spacing of adjacent subcarriers can be fixed, and the total number of subcarriers (K) can be dependent on the system bandwidth. For example, the spacing of the subcarriers can be 15 kHz and the minimum resource allocation (called a “resource block” (RB)) can be 12 subcarriers (or 180 kHz). Consequently, the nominal fast fourier transfer (FFT) size can be equal to 128, 256, 512, 1024 or 2048 for system bandwidth of 1.25, 2.5, 5, 10, or 20 megahertz (MHz), respectively. The system bandwidth can also be partitioned into subbands. For example, a subband can cover 1.08 MHz (i.e., 6 resource blocks), and there can be 1, 2, 4, 8, or 16 subbands for system bandwidth of 1.25, 2.5, 5, 10, or 20 MHz, respectively.

[0039] While aspects of the examples described herein can be associated with LTE technologies, aspects of the present disclosure can be applicable with other wireless communications systems, such as NR. NR can utilize OFDM with a CP on the uplink and downlink, and include support for half-duplex operation using TDD. Beamforming can be supported and beam direction can be dynamically configured. MIMO transmissions with precoding can also be supported. MIMO configurations in the DL can support up to 8 transmit antennas with multi-layer downlink transmission up to 8 streams and up to 2 streams per UE. Multi-layer transmissions with up to 2 streams per UE can be supported. Aggregation of multiple cells can be supported with up to 8 serving cells.

[0040] In some examples, access to an air interface can be scheduled, where a scheduling entity (e.g., a base station) allocates resources for communication among some or all devices and equipment within its serving area or cell. The scheduling entity can be responsible for scheduling, assigning, reconfiguring, and releasing resources for one or more subordinate entities to use. That is, for scheduled communication, subordinate entities utilize resources allocated by the scheduling entity. A base station is not the only component that can function as a scheduling entity. In some examples, a UE can function as a scheduling entity and can schedule resources for one or more subordinate entities, such as one or more other UEs, and the other UEs can utilize the resources scheduled by the UE. In some examples, a UE can act as a scheduling entity in a peer-to-peer (P2P) network and / or in a mesh network. In a mesh network example, UEs can communicate directly with one another in addition to communicating with a scheduling entity.

[0041] exist Figure 1 In the diagram, a solid line with a double arrow indicates the desired transmission between the UE and the serving BS, which is the BS designated to serve the UE on the downlink and / or uplink. A thin dashed line with a double arrow indicates interference transmission between the UE and the BS.

[0042] Figure 2 The example logical architecture of the Distributed Radio Access Network (RAN) 200 is explained, which can be used in... Figure 1 This is implemented in the wireless communication network 100 described herein. The 5G access node 206 may include an access node controller (ANC) 202. The ANC 202 may be the central unit (CU) of a distributed RAN 200. Backhaul interfaces to the next-generation core network (NG-CN) 204 may terminate at the ANC 202. Backhaul interfaces to adjacent next-generation access nodes (NG-AN) 210 may terminate at the ANC 202. The ANC 202 may include one or more transmit / receive points (TRPs) 208 (e.g., cellular, BS, gNB, etc.).

[0043] TRP 208 can be a distributed unit (DU). TRP 208 can be connected to a single ANC (e.g., ANC 202) or more than one ANC (not described). For example, for RAN sharing, Radio as a Service (RaaS), and service-specific AND deployments, TRP 208 can be connected to more than one ANC. Each TRP 208 may include one or more antenna ports. TRP 208 can be configured to serve traffic to the UE individually (e.g., dynamically selected) or jointly (e.g., jointly transmitted).

[0044] The logical architecture of the distributed RAN 200 can support outbound routes across different deployment types. For example, the logical architecture can be based on transport network capabilities (e.g., bandwidth, latency, and / or jitter).

[0045] The logical architecture of the distributed RAN 200 can share features and / or components with LTE. For example, the next-generation access node (NG-AN) 210 can support dual connectivity with NR and can share the same outgoing route for both LTE and NR.

[0046] The logical architecture of the distributed RAN 200 enables collaboration between TRPs 208, for example, via ANC 202 within a TRP and / or across TRPs. Inter-TRP interfaces may not be required.

[0047] Logical functions can be dynamically distributed within the logical architecture of the distributed RAN 200. (Refer to...) Figure 5In more detail, the Radio Resource Control (RRC) layer, Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, Media Access Control (MAC) layer, and Physical (PHY) layer can be adaptively placed at the DU (e.g., TRP 208) or CU (e.g., ANC 202).

[0048] Figure 3 An example physical architecture of a distributed radio access network (RAN) 300 according to various aspects of this disclosure is described. A centralized core network unit (C-CU) 302 can host core network functions. The C-CU 302 can be deployed centrally. C-CU 302 functionality can be offloaded (e.g., to Advanced Radio Services (AWS)) in an attempt to handle peak capacity.

[0049] The Centralized RAN Unit (C-RU) 304 can store one or more ANC functions. Optionally, the C-RU 304 can store core network functions locally. The C-RU 304 can be deployed in a distributed manner. The C-RU 304 can be located close to the network edge.

[0050] The DU 306 can store one or more TRPs (Edge Node (EN), Edge Unit (EU), Radio Header Terminal (RH), Smart Radio Header Terminal (SRH), etc.). The DU can be located at the edge of a network with radio frequency (RF) functionality.

[0051] Figure 4 The explanation (e.g.) Figure 1 The example components of BS110 and UE 120 depicted herein can be used to implement various aspects of this disclosure. For example, antenna 452, processors 466, 458, 464 and / or controller / processor 480 of UE 120 and / or antenna 434, processors 420, 460, 438 and / or controller / processor 440 of BS110 can be used to perform the functions described herein and referenced in the document. Figure 7 Or 8. Various techniques and methods for explanation.

[0052] At the BS 110, a transmit processor 420 can receive data from a data source 412 and control information from a controller / processor 440. The control information can be for the physical broadcast channel (PBCH), physical control format indicator channel (PCFICH), physical hybrid ARQ indicator channel (PHICH), physical downlink control channel (PDCCH), group common PDCCH (GC PDCCH), etc. The data can be for the physical downlink shared channel (PDSCH), etc. The processor 420 can process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. The processor 420 can also generate reference symbols, e.g., for the primary synchronization signal (PSS), secondary synchronization signal (SSS), and cell-specific reference signal (CRS). A transmit (TX) multiple-input multiple-output (MIMO) processor 430 can perform spatial processing (e.g., precoding) on the data symbols, the control symbols, and / or the reference symbols, if applicable, and can provide output symbol streams to the modulators (MODs) 432a through 432t. Each modulator 432 can process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator can further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. Downlink signals from modulators 432a through 432t can be transmitted via the antennas 434a through 434t, respectively.

[0053] At the UE 120, the antennas 452a through 452r can receive the downlink signals from the base station 110 and can provide received signals to the demodulators (DEMODs) in transceivers 454a through 454r, respectively. Each demodulator 454 can condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples. Each demodulator can further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 456 can obtain received symbols from all the demodulators 454a through 454r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 458 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 460, and provide decoded control information to a controller / processor 480.

[0054] On the uplink, at UE 120, a transmit processor 464 can receive and process data (e.g., for the physical uplink shared channel (PUSCH)) from a data source 462 and control information (e.g., for the physical uplink control channel (PUCCH)) from the controller / processor 480. The transmit processor 464 can also generate reference symbols for a reference signal (e.g., for the sounding reference signal (SRS)). The symbols from the transmit processor 464 can be precoded by a TX MIMO processor 466 if applicable, further processed by the modulators 454a through 454r (e.g., for SC-FDM, etc.), and transmitted to the base station 110 in accordance with the transmission scheme (e.g., beamforming, transmit diversity, spatial multiplexing, etc.). At the BS 110, the uplink signals from the UE 120 can be received by the antennas 434, processed by the demodulators 432, detected by a MIMO detector 436 if applicable, and further processed by a receive processor 438 to obtain decoded data and control information sent by the UE 120. The receive processor 438 can provide the decoded data to a data sink 439 and the decoded control information to the controller / processor 440.

[0055] The controller / processors 440 and 480 can direct the operation at the base

[0056] Figure 5 An example diagram 500 illustrating a protocol stack for implementing a communication protocol stack is illustrated in accordance with aspects of the present disclosure is illustrated. The illustrated communication protocol stack can be implemented by a device operating in a wireless communication system, such as a 5G system, e.g., a system supporting uplink-based mobility. The diagram 500 illustrates a communication protocol stack including a radio resource control (RRC) layer 510, a packet data convergence protocol (PDCP) layer 515, a radio link control (RLC) layer 520, a medium access control (MAC) layer 525, and a physical (PHY) layer 530. In various examples, these layers of the protocol stack can be implemented as separate software modules, portions of a processor or ASIC, portions of non-colocated devices connected by a communication link, or various combinations thereof. Colocated and non-colocated implementations can be used, for example, in a protocol stack for a network access device (e.g., an AN, CU, and / or DU) or a UE.

[0057] A first option 505-a illustrates a split implementation of the protocol stack, where the implementation of the protocol stack is split between a centralized network access device (e.g., an AN, CU, and / or DU) and a UE. Figure 2ANC 202) and distributed network access devices (e.g., DUs 208) in the network 100. The RRC layer 510 can be used to manage the communication of the network access devices (e.g., the CU 204 and the DUs 208) with the core network 106. The RRC layer 510 can be used to manage the communication of the network access devices (e.g., the CU 204 and the DUs 208) with the UEs 104. The RRC layer 510 can be used to manage the communication of the network access devices (e.g., the CU 204 and the DUs 208) with each other. The RRC layer 510 can be used to manage the communication of the network access devices (e.g., the CU 204 and the DUs 208) with the core network 106. The RRC layer 510 can be used to manage the communication of the network access devices (e.g., the CU 204 and the DUs 208) with the UEs 104. The RRC layer 510 can be used to manage the communication of the network access devices (e.g., the CU 204 and the DUs 208) with each other. Figure 2 In a first option 505-a, the RRC layer 510 and the PDCP layer 515 can be implemented by the central unit, while the RLC layer 520, the MAC layer 525, and the PHY layer 530 can be implemented by the DUs. In various examples, the CU and the DUs can be co-located or non-co-located. The first option 505-a can be useful in macrocell, microcell, or pico cell deployments.

[0058] A second option 505-b illustrates a unified implementation of the protocol stack, where the protocol stack is implemented in a single network access device. In the second option, the RRC layer 510, the PDCP layer 515, the RLC layer 520, the MAC layer 525, and the PHY layer 530 can each be implemented by the AN. The second option 505-b can be useful in, for example, femto cell deployments.

[0059] Regardless of whether the network access device implements part or all of the protocol stack, the UE can implement the entire protocol stack (e.g., the RRC layer 510, the PDCP layer 515, the RLC layer 520, the MAC layer 525, and the PHY layer 530) as shown in 505-c.

[0060] In LTE, the basic transmission time interval (TTI) or packet duration is the 1 ms subframe. In NR, one subframe still is 1 ms, but the basic TTI is referred to as a slot. A subframe contains a variable number of slots (e.g., 1, 2, 4, 8, 16,... slots) depending on the subcarrier spacing. The NR RB is 12 consecutive frequency subcarriers. NR can support a base subcarrier spacing of 15 KHz with other subcarrier spacings defined relative to the base subcarrier spacing (e.g., 30 kHz, 60 kHz, 120 kHz, 240 kHz, etc.). The symbol and slot lengths scale with the subcarrier spacing. The CP length also depends on the subcarrier spacing.

[0061] Figure 6 is a diagram illustrating an example of a frame format 600 for NR. The transmission timeline for each of the downlink and uplink can be partitioned into units of radio frames. Each radio frame can have a predetermined duration (e.g., 10 milliseconds) and can be partitioned into 10 subframes of equal duration. Each subframe can include a variable number of slot depending on the numerology used. Each slot can include a variable number of symbol periods (e.g., 7 or 14 symbol periods) depending on the numerology. Symbol periods in each slot can be assigned an index. A mini-slot refers to a transmission time interval having a duration (e.g., 2, 3, or 4 symbol periods) that is less than a slot.

[0062] Each symbol in a slot can indicate a link direction (e.g., DL, UL, or flexible) for data transmission and the link direction for each subframe can be dynamically switched. The link direction can be based on a slot format. Each slot can include DL / UL data as well as DL / UL control information.

[0063] In NR, a synchronization signal (SS) block is transmitted. The SS block includes a PSS, a SSS, and a two symbol PBCH. The SS block can be transmitted in a fixed time slot position, such as symbols 0-3, as shown in Figure 6 The PSS and SSS can be used by UEs for cell search and acquisition. The PSS can provide half-frame timing, the SS can provide CP length and frame timing. The PSS and SSS can provide the cell identity. The PBCH carries some basic system information, such as downlink system bandwidth, timing information within radio frame, SS burst set periodicity, system frame number, etc. The SS blocks can be organized into SS bursts to support beam sweeping. Further system information, such as remaining minimum system information (RMSI), system information block (SIB), other system information (OSI) can be transmitted on a physical downlink shared channel (PDSCH) in certain subframes.

[0064] In some cases, two or more subordinate entities (e.g., UEs) can communicate with each other using sidelink signals. Real-world applications of such sidelink communications can 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. Generally, a sidelink signal can refer to a signal communicated from one subordinate entity (e.g., UE1) to another subordinate entity (e.g., UE2) without relaying that communication through the scheduling entity (e.g., UE or BS), even though the scheduling entity can be utilized for scheduling and / or control purposes. In some examples, sidelink signals can be communicated using a licensed spectrum (unlike wireless local area networks, which typically use an unlicensed spectrum).

[0065] A UE can operate in various radio resource configurations, including a configuration associated with transmitting pilots using a dedicated set of resources (e.g., radio resource control (RRC) dedicated state, etc.) or a configuration associated with transmitting pilots using a common set of resources (e.g., RRC common state, etc.). When operating in the RRC dedicated state, the UE can select the dedicated set of resources for transmitting a pilot signal to a network. When operating in the RRC common state, the UE can select the common set of resources for transmitting a pilot signal to the network. In either case, a pilot signal transmitted by a UE can be received by one or more network access devices, such as an AN, or a DU, or portions thereof. Each receiving network access device can be configured to receive and measure pilot signals transmitted on the common set of resources, and also receive and measure pilot signals transmitted on dedicated sets of resources allocated to the UEs for which the network access device is a member of a monitoring set of network access devices for the UE. One or more receiving network access devices, or a CU to which receiving network access device(s) transmit the measurements of the pilot signals, can use the measurements to identify serving cells for the UEs, or to initiate a change in serving cell(s) for one or more UEs.

[0066] Example paging design with short message indicator

[0067] NR paging downlink control information (DCI) can include various types of information, including short messages (e.g., 8-bit messages) and / or scheduling information. In some implementations, one or more bits within a DCI message can be used to indicate the presence of short messages and / or scheduling information within the DCI message. For example, the following is an example of how two short message indicator bits can be used in some implementations:

[0068]

[0069] When the short message indicator is not enabled, the DCI includes scheduling information for PDSCH scrambled by P-RNTI. Alternatively, when the short message indicator is enabled, this indicates that there is no scheduling information for PDSCH scrambled by P-RNTI. In this case, the network can repurpose the portion of the DCI that would have been used for scheduling to instead be used for a short paging message. For example, the short paging message can include one or more of the following: a system information (SI) update, a commercial mobile alert system (CMAS) update, or an earthquake and tsunami warning system (ETWS) update, to name a few. Notably, RRC CONNECTED (RRC CONNECTED) UEs can monitor for SI update notifications during any paging occasion and can not need to decode the P-RNTI PDSCH unless specifically requested or indicated. Such a system configuration can enable more efficient operation. For example, UE power savings and better hardware implementation can be achieved because the UE can not have to over-provision for rare and / or unnecessary events such as a P-RNTI scrambled PDSCH at the same time as a C-RNTI scrambled PDSCH.

[0070] Handling of paging messages in P-RNTI scrambled PDSCH with one or more short messages in the DCI can include several considerations. For example, for SI updates, the network can not need to send P-RNTI scrambled PDSCH at the same time. Thus, the UE can not need to be paged before obtaining the SI update to resolve the network configuration.

[0071] For commercial mobile alert system (CMAS) updates and earthquake and tsunami warning system (ETWS) updates, the network can delay and / or prioritize the processing of various transmissions. For example, the network can send all short messages to the UE first and then send any paging PDSCH messages thereafter. Alternatively, the network can delay the ETWS update or CMAS update until all paging has been sent to the UE on PDSCH.

[0072] Embodiments described herein present additional configurations for DCI messaging. For example, in a first implementation, the network can transmit two DCI messages scrambled by one P-RNTI and a blind decoding configuration for the UE. One of the two DCI messages can be a short message and the other DCI message can include scheduling information. The receiving IDLE UE can be configured to search for both DCIs, while the RRC CONNECTED UE can be configured to search for the short message DCI but can ignore the scheduling DCI message. In this configuration, the UE has no additional complexity in searching for the DCI messages, but the network must be able to accommodate two paging DCIs.

[0073] In an alternative implementation, the network can transmit two DCI messages scrambled by two different P-RNTIs and a blind decoding configuration for the UE. As described above, one of the two DCI messages can be a short message and the other DCI message can include scheduling information. Also as described above, an IDLE UE can be configured to search for both DCIs, while an RRC CONNECTED UE can be configured to search for the short message DCI, but can ignore the scheduling DCI message. In this alternative configuration, the UE has no additional complexity in searching for the DCI messages, but the UE can be able to prune based on the different P-RNTIs, and as described above, the network must be able to accommodate two paging DCIs.

[0074] The embodiments described herein can implement alternative DCI formats. For example, in a first implementation, the DCI can contain two types of short messages. In particular, as described above, the scheduling DCI reserved bits can be repurposed as short message indicator bits, which indicate the presence of, for example, an SI update, a CMAS update, or an ETWS update.

[0075] In this case, once received in the DCI, the UE can be prompted to obtain the update from the SI-RNTI. Further, in this case, the short message DCI can have more information in the DCI about the SI update or CMAS or ETWS update, which can be indicated by the same short message indicator or a new empty resource allocation. In this implementation, the network can send one DCI message and utilize the short message format depending on network preference. Further, the RRC CONNECTED UE can still ignore the scheduling information in the scheduling DCI and only read the short format message.

[0076] Another alternative DCI format can contain two short message indicator bits, which signal whether the UE needs to decode the PDSCH scrambled by the P-RNTI and discard the PDSCH scrambled by the C-RNTI. Thus, the network can send one DCI message and utilize the short message format depending on network preference. However, in this case, the RRC CONNECTED UE can be configured to decode the PDSCH scrambled by the P-RNTI if indicated, and can ignore the PDSCH scrambled by the C-RNTI if it is overlapping. Thus, in some implementations, the RRC CONNECTED UE can be configured to prioritize the PDSCH scrambled by the P-RNTI whenever the scheduling DCI is present, and discard any PDSCH scrambled by the C-RNTI that is simultaneously overlapping in time.

[0077] Figure 7 Example operations for a method 700 for wireless communication by a user equipment (UE) are illustrated.

[0078] The method 700 begins, at step 702, by receiving a paging downlink control channel including downlink control information, where the downlink control information includes a first short message.

[0079] In some implementations, the downlink control information includes a first downlink control information message and a second downlink control information message. In some implementations, the first downlink control information message includes the first short message and the second downlink control information message includes scheduling information and a second short message.

[0080] Subsequently, the method 700 proceeds to step 704: processing the first short message.

[0081] Subsequently, the method 700 proceeds to step 706: determining whether the control information further includes scheduling information.

[0082] If the downlink control information includes scheduling information and the UE is not in a connected state, the method 700 proceeds to step 708: processing the scheduling information.

[0083] If the downlink control information includes scheduling information and the UE is in a connected state, the method 700 proceeds to step 710: ignoring the scheduling information.

[0084] In some examples, the connected state of the UE is a radio resource control (RRC) connected state.

[0085] In some implementations, the first downlink control information message and the second downlink control information message are scrambled by a same paging-radio network temporary identifier (P-RNTI).

[0086] In some implementations, the first downlink control information message and the second downlink control information message are scrambled by different paging-radio network temporary identifiers (P-RNTIs).

[0087] In some implementations, the second downlink control information message schedules a physical downlink shared channel (PDSCH) scrambled with the P-RNTI.

[0088] In some implementations, the first short message includes a short paging message including one or more of: a system information update, a commercial mobile alert system (CMAS) update, or an earthquake and tsunami warning system (ETWS) update.

[0089] In some implementations, the first downlink control information message includes a first message format of a first bit length and the second downlink control information message includes a second format of a second bit length. In some implementations, the second bit length includes a subset of bits in the second downlink control information message that are not used to schedule a paging PDSCH.

[0090] In some implementations, the first downlink control information message includes more bits associated with at least one of a SI update, a CMAS update, or an ETWS update than the second downlink control information message.

[0091] In some implementations, the connection state of the UE is an idle state, and the method 700 further includes processing the second short message.

[0092] In some implementations, at least one of the first downlink control information message or the second downlink control information message includes a first indicator bit and a second indicator bit, and values of the first indicator bit and the second indicator bit are configured to signal the UE to decode the PDSCH scrambled with the P-RNTI and to discard the PDSCH scrambled with a cell-radio network temporary identifier (C-RNTI).

[0093] Figure 8 Example operations of a method 800 for wireless communication that can be performed by a network entity, in accordance with aspects of the present disclosure, are illustrated.

[0094] The method 800 begins, at 802, by transmitting, on a paging downlink control channel, a first downlink control information message including a first short message.

[0095] Subsequently, the method 800 proceeds to 804, by transmitting, on the paging downlink control channel, a second downlink control information message including scheduling information and a second short message.

[0096] In some implementations, the first short message includes a short paging message including one or more of: a system information update, a commercial mobile alert system (CMAS) update, or an earthquake and tsunami warning system (ETWS) update.

[0097] In some implementations, the second downlink control information message schedules a physical downlink shared channel (PDSCH) scrambled with a paging-radio network temporary identifier (P-RNTI).

[0098] In further embodiments of the methods 700 and 800 as described above, two DCI messages scrambled by a P-RNTI can be provided. The first DCI message can include one short message, while the second DCI message can be a scheduling DCI message including scheduling information. In this case, the network implementation can include having the network entity send both DCI messages, and the network entity can further send a blind decoding configuration for the UE.

[0099] Further, during aspects of the methods 700 and 800, the UE can be configured to different behaviors depending on, for example, the state of the UE.

[0100] For example, an IDLE UE can be configured to search for two DCI messages. If the IDLE UE search detects two DCI messages, the IDLE UE can be configured to process both messages. On the other hand, if the UE is in RRC CONNECTED state, the UE will only search for a short message within the DCI message. In this case, if scheduling information is found in the DCI message, the RRC CONNECTED UE can be configured to ignore the scheduling information.

[0101] In some examples of the methods 700 and 800, different DCI messages can be scrambled with different P-RNTIs. The two DCI messages can include a first DCI message including one short message, and a second DCI message including scheduling information. In this case, the network implementation can again include a network entity sending two DCI messages and blind decoding configuration for the UE.

[0102] In some examples of the methods 700 and 800, a first DCI format including a first short message of a first length can be used. Further, a second format including scheduling information and a second short message of a second length can be used, where in this example the second length represents the length of the second short message rather than the length of the scheduling information and the second short message combined. Thus, the DCI message can include two types of short messages.

[0103] In some implementations, bits reserved for scheduling in the DCI message can be repurposed for short indications of, for example, SI updates, CMAS updates, or ETWS updates. In some implementations, once received in the DCI message, the UE can be prompted to obtain these updates from system information radio network temporary identifier (SI-RNTI).

[0104] In some cases, the short message within the first format of DCI message can have more information about, for example, SI updates, CMAS updates, or ETWS updates, than the second format of DCI message.

[0105] In some implementations, indication by the same short message indicator or (new) null resource allocation can be provided. In some cases, the network implementation can include a network entity that can send one DCI and utilize the short message format depending on network preference.

[0106] In some implementations, the UE can be configured such that in both the IDLE state and the RRC CONNECTED state, the UE reads both the "detailed" short paging message and the scheduling information within the DCI message, as well as the reserved bits containing the "shortened" short paging message. The RRC CONNECTED UE can still ignore the scheduling information in the DCI message. In contrast, the IDLE UE can be configured to process both the short message(s) and the scheduling information.

[0107] In another implementation, the DCI format can contain a short message indicator bit and an additional indicator bit. The additional indicator bit, or a two-bit based pattern, can signal that the UE needs to decode the P-RNTI PDSCH and discard the C-RNTI PDSCH. In some implementations, the bit usage can be consistent with the short message indicator (i.e., ignored if a short message is used). In some implementations, the network can include a network entity that sends one DCI message and utilizes a short message format.

[0108] In some implementations, an indicator field can be provided in the paging DCI message that indicates the specific format of the paging DCI message. For example, in some cases, the indicator can indicate that the format of the paging DCI message includes only a paging message, or it can indicate that the paging DCI message includes scheduling information as well as a short paging message. In other cases, the indicator field can indicate that the paging DCI message includes scheduling information and a short paging message, or the indicator field can indicate that the DCI message includes only scheduling information and one or more unused reserved bits.

[0109] In some implementations, the indicator field or bit(s) can also be "empty resource allocation" bit(s) that indicate the presence of a larger short paging message or P-RNTI PDSCH scheduling information and a shorter short paging message conveyed in the reserved bits. Empty resource allocation means that the resource allocation bits of the DCI determine whether the DCI contains a larger short paging message or whether the DCI contains P-RNTI PDSCH scheduling information and a shorter short paging message.

[0110] Thus, in the case where the indicator bit(s) are empty resource allocation bit(s), the following can be provided. If the resource allocation bits of the DCI signal a valid resource allocation, then the DCI contains P-RNTI PDSCH scheduling information and a short paging message. Alternatively, if the resource allocation bits of the DCI signal an invalid resource allocation, then the DCI contains a larger short paging message. In one or more cases, the resource allocation can represent a time or frequency allocation.

[0111] In other cases, the indicator bit can indicate other options. For example, in one or more implementations, the indicator bit can indicate that the paging DCI message includes P-RNTI PDSCH scheduling information and a shorter short paging message conveyed in the reserved bits, or the indicator bit can indicate that the paging DCI message includes only P-RNTI PDSCH scheduling information. In this case, there can be unused reserved bits in the paging DCI message. In this case, the UE can treat the reserved bits of the DCI message as garbage and / or simply identify them as unused bits. In one or more cases, the indicator field can be used by an idle UE to identify and read the scheduling information and the shorter short paging message. A connected UE, if configured, can use the indicator field to identify and read the shorter short paging message, and can use the indicator field to ignore the P-RNTI PDSCH scheduling information.

[0112] In some cases, an RRC CONNECTED UE can be configured to decode PDSCH scrambled with P-RNTI and can ignore C-RNTI scrambled PDSCH if it is simultaneously overlapped.

[0113] In some implementations, an RRC CONNECTED UE is configured to prioritize P-RNTI scrambled PDSCH whenever there is scheduling information in the DCI message, and drop any C-RNTI scrambled PDSCH that is simultaneously overlapped in time.

[0114] The aspects described above with respect to the methods 700 and 800 can help reduce hardware complexity in handling paging messages when the UE is in connected mode. This provides the benefit of further system flexibility without compromising UE implementation.

[0115] Figure 9 A communications device 900 including various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as the operations 700 described and depicted above, is illustrated and described. Figure 7 A communications device 900 including various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as the operations 700 described and depicted above, is illustrated and described.

[0116] In the depicted embodiment, the communications device 900 includes a processing system 914 coupled to a transceiver 912. The transceiver 912 is configured to transmit and receive signals for the communications device 900 via an antenna 920, such as the various signals as described herein. The processing system 914 can be configured to perform processing functions for the communications device 900, including processing signals received by and / or to be transmitted by the communications device 900.

[0117] The processing system 914 includes a processor 908 coupled to a computer- readable medium / memory 910 via a bus 924. In certain aspects, the computer-readable medium / memory 910 is configured to store instructions that, when executed by the processor 908, cause the processor 908 to perform Figure 7 the operations illustrated in FIG. 13, or instructions to perform the other operations for the techniques discussed herein.

[0118] In certain aspects, the processing system 914 further includes a monitoring component 902 for performing the operations described herein. In some implementations, the monitoring component 902 can be configured to perform the operations illustrated at 702 in FIG. 12. Figure 7

[0119] Additionally, the processing system 914 includes a processing component 904 for performing the operations described herein. In some implementations, the processing component 904 can be configured to perform the operations illustrated at 704 and 708 in FIG. 12. Figure 7

[0120] Further, the processing system 914 includes a determining component 906 for performing the operations described herein. In some implementations, the determining component 906 can be configured to perform the operations illustrated at 706 and 710 in FIG. 12. Figure 7

[0121] Further, the processing system 914 includes a receiving component 916 for performing the operations described herein. In some implementations, the determining component 906 can be configured to perform the operations illustrated at 702 in FIG. 12. Figure 7

[0122] The monitoring component 902, the processing component 904, the determining component 906, and the receiving component 916 can be coupled to the processor 908 via the bus 924. In certain aspects, the monitoring component 902, the processing component 904, the determining component 906, and the receiving component 916 can be hardware circuits. In certain aspects, the monitoring component 902, the processing component 904, the determining component 906, and the receiving component 916 can be software components that are executed and run on the processor 908.

[0123] Figure 10 The communications device 1000 is illustrated showing various components (e.g., corresponding to means-plus-function components) configured to perform the operations for the techniques disclosed herein, such as the operations illustrated in FIG. 13. Figure 8

[0124] ​​​​​In this depicted embodiment, the communications device 1000 includes a processing system 1014 coupled to a transceiver 1012. The transceiver 1012 is configured to transmit and receive signals for the communications device 1000 (such as the various signals described herein) via an antenna 1020. The processing system 1014 can be configured to perform processing functions for the communications device 1000, including processing signals received and / or to be transmitted by the communications device 1000.

[0125] The processing system 1014 includes a processor 1008 coupled to a computer- readable medium / memory 1010 via a bus 1024. In certain aspects, the computer-readable medium / memory 1010 is configured to store instructions that when executed by the processor 1008, cause the processor 1008 to perform operations 800 illustrated in FIG. 8, or other operations for performing the various techniques discussed herein. Figure 8

[0126] In certain aspects, the processing system 1014 further includes a transmission component 1002 for performing the operations described herein, such as the operations illustrated at 802 and 804 in FIG. 8. Additionally, the processing system 1014 includes a reception component 1004 for performing the operations described herein, such as the operations described herein. The processing system 1014 further includes a message formation component 1006 for performing the operations described herein. Finally, the processing system 1014 further includes a scrambling component 1016 for performing the operations described herein. Figure 8

[0127] The transmission component 1002, the reception component 1004, the message formation component 1006, and the scrambling component 1016 can be coupled to the processor 1008 via the bus 1024. In certain aspects, the transmission component 1002, the reception component 1004, the message formation component 1006, and the scrambling component 1016 can be hardware circuits. In certain aspects, the transmission component 1002, the reception component 1004, the message formation component 1006, and the scrambling component 1016 can be software components that are executed and run on the processor 1008.

[0128] Example Embodiments

[0129] The following are example embodiments. Even though reference is made to a single claim dependency in the following examples or in the following claims, all claim dependencies, including multiple claim dependencies, are included within the scope of the present disclosure.

[0130] ​​Embodiment 1 : A method for wireless communication by a user equipment (UE), comprising: monitoring a paging downlink control channel comprising downlink control information, wherein the downlink control information comprises a first short message; processing the first short message; determining whether the downlink control information further comprises scheduling information; processing the scheduling information if the downlink control information comprises scheduling information and the UE is not in a connected state; and ignoring the scheduling information if the downlink control information comprises scheduling information and the UE is in a connected state.

[0131] Embodiment 2: The method of embodiment 1, wherein: the downlink control information comprises a first downlink control information message comprising the first short message and a second downlink control information message comprising the scheduling information.

[0132] Embodiment 3: The method of embodiment 2, wherein the second downlink control information message further comprises a second short message.

[0133] Embodiment 4: The method of embodiment 3, wherein the connected state of the UE is a radio resource control (RRC) connected state.

[0134] Embodiment 5: The method of any of embodiments 3-4, wherein the first downlink control information message and the second downlink control information message are scrambled by a same paging-radio network temporary identifier (P-RNTI).

[0135] Embodiment 6: The method of any of embodiments 3-4, wherein the first downlink control information message and the second downlink control information message are scrambled by different paging-radio network temporary identifiers (P-RNTIs).

[0136] Embodiment 7: The method of any of embodiments 3-6, wherein the second downlink control information message schedules a physical downlink shared channel (PDSCH) scrambled with the P-RNTI.

[0137] Embodiment 8: The method of any of embodiments 1-7, wherein the first short message comprises a short paging message comprising one or more of: a system information update, a commercial mobile alert system (CMAS) update, or an earthquake and tsunami warning system (ETWS) update.

[0138] Embodiment 9: The method of any of embodiments 3-8, wherein: the first downlink control information message comprises a first message format of a first bit length, and the second downlink control information message comprises a second format of a second bit length.

[0139] Example 10: The method of example 9, wherein the second bit length comprises a subset of bits in the second downlink control information message that are not used to schedule a paging PDSCH.

[0140] Example 11 : The method of any of examples 9-10, wherein the first downlink control information message comprises more bits associated with at least one of a SI update, a CMAS update, or an ETWS update than the second downlink control information message.

[0141] Example 12: The method of any of examples 3-11, wherein: the connection state of the UE is an idle state, and the method further comprises processing the second short message.

[0142] Example 13: The method of any of examples 3-12, wherein at least one of the first downlink control information message or the second downlink control information message comprises a first indicator bit and a second indicator bit, and values of the first indicator bit and the second indicator bit are configured to signal the UE to decode a PDSCH scrambled with a P-RNTI and to discard a PDSCH scrambled with a cell-radio network temporary identifier (C-RNTI).

[0143] Example 14: The method of example 1, wherein the downlink control information comprises a first indicator field indicating a format of the downlink control information.

[0144] Example 15: The method of example 14, wherein: the first indicator field comprises a resource allocation bit, the resource allocation bit indicates a first format comprising a first short message of a first length if the resource allocation bit signals an invalid resource allocation, and the resource allocation bit indicates a second format comprising scheduling information and a second short message of a second length if the resource allocation bit signals a valid resource allocation.

[0145] Example 16: The method of example 15, wherein the resource allocation bit indicates at least one of a time or a frequency allocation.

[0146] Example 17: The method of example 1, wherein the downlink control information comprises a first indicator field indicating at least one of a first or a second format, the first format comprising scheduling information and one or more unused reserved bits, and the second format comprising scheduling information and a second short message.

[0147] Example 18: The method of example 1, wherein the downlink control information comprises a first indicator field and a second indicator field.

[0148] Embodiment 19: A user equipment (UE) comprising: memory including computer executable instructions; a processor configured to execute the computer executable instructions and cause the UE to: monitor a paging downlink control channel including downlink control information, wherein the downlink control information includes a first short message; process the first short message; and determine whether the downlink control information further includes scheduling information; if the downlink control information includes scheduling information and the UE is not in a connected state, process the scheduling information; and if the downlink control information includes scheduling information and the UE is in a connected state, ignore the scheduling information.

[0149] Embodiment 20: The UE of embodiment 19, wherein: the downlink control information includes a first downlink control information message and a second downlink control information message, the first downlink control information message includes the first short message, and the second downlink control information message includes the scheduling information and a second short message.

[0150] Embodiment 21: The UE of embodiment 20, wherein the connected state of the UE is a radio resource control (RRC) connected state.

[0151] Embodiment 22: The UE of any of embodiments 20-21, wherein the first downlink control information message and the second downlink control information message are scrambled by a same paging-radio network temporary identifier (P-RNTI).

[0152] Embodiment 23: The UE of embodiments 20-21, wherein the first downlink control information message and the second downlink control information message are scrambled by different paging-radio network temporary identifiers (P-RNTIs).

[0153] Embodiment 24: The UE of any of embodiments 20-23, wherein the second downlink control information message schedules a physical downlink shared channel (PDSCH) scrambled with the P-RNTI.

[0154] Embodiment 25: The UE of any of embodiments 19-24, wherein the first short message includes a short paging message including one or more of: a system information update, a commercial mobile alert system (CMAS) update, or an earthquake and tsunami warning system (ETWS) update.

[0155] Embodiment 26: The UE of any of embodiments 20-25, wherein: the first downlink control information message includes a first message format of a first bit length, and the second downlink control information message includes a second format of a second bit length.

[0156] Example 27: The UE as in Example 26, wherein the second bit length includes a subset of bits in the second downlink control information message that are not used for scheduling paging PDSCH.

[0157] Example 28: A UE as described in any of Examples 26-27, wherein the first downlink control information message includes more bits associated with at least one of the SI update, CMAS update, or ETWS update compared to the second downlink control information message.

[0158] Example 29: The method of any of Examples 26-28, wherein: the connection state of the UE is an idle state, and the processor is further configured to enable the UE to process a second short message.

[0159] Example 30: A UE as described in any of Examples 20-29, wherein at least one of the first downlink control information message or the second downlink control information message includes a first indicator bit and a second indicator bit, and the values ​​of the first indicator bit and the second indicator bit are configured to signal the UE to decode the PDSCH scrambled by P-RNTI and discard the PDSCH scrambled by Cellular-Radio Network Temporary Identifier (C-RNTI).

[0160] Example 31: A user equipment (UE) includes: means for monitoring a paging downlink control channel including downlink control information, wherein the downlink control information includes a first short message; means for processing the first short message; means for determining whether the downlink control information further includes scheduling information; means for processing the scheduling information if the downlink control information includes scheduling information and the UE is not in a connected state; and means for ignoring the scheduling information if the downlink control information includes scheduling information and the UE is in a connected state.

[0161] Example 32: The UE as in Example 31, wherein: the downlink control information includes a first downlink control information message and a second downlink control information message, the first downlink control information message includes a first short message, and the second downlink control information message includes scheduling information and a second short message.

[0162] Example 33: The UE as in Example 32, wherein the first short message includes a short paging message which includes one or more of the following: system information update, Commercial Mobile Alarm System (CMAS) update, or Earthquake and Tsunami Warning System (ETWS) update, and the second downlink control information message is scheduled to use a Physical Downlink Shared Channel (PDSCH) scrambled with P-RNTI.

[0163] Example 34: A method for wireless communications by a network, comprising: transmitting a first downlink control information message on a paging downlink control channel, the first downlink control information message comprising a first short message; and transmitting a second downlink control information message on the paging downlink control channel, the second downlink control information message comprising scheduling information.

[0164] Example 35: The method of example 34, wherein the second downlink control information message further comprises a second short message.

[0165] Example 36: The method of example 35, wherein the first short message comprises a short paging message comprising one or more of: a system information update, a commercial mobile alert system (CMAS) update, or an earthquake and tsunami warning system (ETWS) update.

[0166] Example 37: The method of example 36, wherein the second downlink control information message schedules a physical downlink shared channel (PDSCH) scrambled with a paging-radio network temporary identifier (P-RNTI).

[0167] The methods disclosed herein include one or more steps or actions for achieving the methods. The method steps and / or actions can be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order is specified, the order and / or use of the specific steps and / or actions can be modified without departing from the scope of the claims.

[0168] As used herein, the phrase “at least one of” followed by a listing of two or more items means 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, a-b, a-c, b-c, and a-b-c, as well as any combination of multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c, or any other ordering of a, b, and c).

[0169] As used herein, the term “determining” encompasses a wide variety of actions. For example, “determining” can include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database or another data structure), ascertaining and the like. Additionally, “determining” can include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory) and the like. Furthermore, “determining” can include resolving, selecting, choosing, establishing and the like.

[0170] The preceding 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 readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other aspects. Thus, the claims are not intended to be limited to the aspects shown herein, but are to be accorded the full scope consistent with the language of the claims, wherein reference to an element in the singular is not intended to mean "one and only one" unless specifically so stated, but rather "one or more." Unless specifically stated otherwise, the term "some" refers to one or more. All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that enable a person skilled in the art to practice the disclosure are

[0171] Various operations described above may Figure 7 may be performed by any suitable means capable of performing the corresponding functions. Generally, these means can include various hardware and / or software component(s) and / or module(s), including, but not limited to a circuit, an application specific integrated circuit (ASIC), or processor. Generally, where there are Figure 8 operations illustrated in FIG. 7, and Figure 9 operations illustrated in FIG. 8, correspond to Figure 10 devices illustrated in FIGS. 6 and 7, respectively.

[0172] For example, the means for transmitting and / or the means for receiving can include one or more of transmit processor 420, TX MIMO processor 430, receive processor 438, or antenna(s) 434 of base station 110 and / or transmit processor 464, TX MIMO processor 466, receive processor 458, or antenna(s) 452 of user equipment 120. Additionally, the means for monitoring, the means for processing, the means for determining, the means for prioritizing, and / or the means for providing can include one or more processors, such as controller / processor 440 of base station 110 and / or controller / processor 480 of user equipment 120.

[0173] The various illustrative logic blocks, modules, and circuits described in this disclosure can be implemented or executed using a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), 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. The general-purpose processor may be a microprocessor, but in alternatives, 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, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0174] If implemented in hardware, an example hardware configuration may include a processing system in a wireless node. The processing system can be implemented using a bus architecture. Depending on the specific application and overall design constraints of the processing system, the bus may include any number of interconnect buses and bridges. The bus can link together various circuits, including a processor, machine-readable media, and a bus interface. The bus interface can be used to connect network adapters, etc., to the processing system via the bus. The network adapter can be used to implement signal processing functions at the PHY layer. In user terminal 120 (see...) Figure 1 In such cases, the user interface (e.g., keypad, display, mouse, joystick, etc.) can also be connected to the bus. The bus can also link various other circuits, such as timing sources, peripherals, voltage regulators, power management circuits, and similar circuits, which are well known in the art and will not be described further. The processor can be implemented using one or more general-purpose 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 system, those skilled in the art will recognize how best to implement the functionality described for the processing system.

[0175] If implemented in software, the functions can be stored or transmitted over as one or more instructions or code on a computer-readable medium. Software shall be construed broadly to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. Computer-readable media include both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. The processor can be responsible for managing the bus and general processing, including the execution of software modules stored on the machine-readable storage media. A computer-readable storage medium can be coupled with the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium can be integral with the processor. By way of example, the machine-readable media can include a transmission line, a carrier wave modulated by data, and / or a computer readable storage medium with instructions stored thereon separate from the wireless node, all of which can be accessed via the bus. Alternatively, or in addition, the machine-readable media, or any portion thereof, can be integrated with the processor, such as the case can be with cache and / or general register files. Examples of machine-readable storage media can include, by way of example, 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 medium, or any combination thereof. The machine-readable media can be embodied in a computer-program product.

[0176] A software module can comprise a single instruction, or many instructions, and can be distributed over several different code segments, among different programs, and across multiple storage media. The computer-readable media can comprise a number of software modules. The software modules include instructions that, when executed by an apparatus such as a processor, cause the processing system to perform various functions. The software modules can include a transmission module and a receiving module. Each software module can reside in a single storage device or be distributed across multiple storage devices. By way of example, a software module can be loaded into RAM from a hard drive when a triggering event occurs. During execution of the software module, the processor can load some of the instructions into cache to increase access speed. One or more cache lines can then be loaded into a general register file for execution by the processor. When referring to the functionality of a software module below, it will be understood that such functionality is implemented by the processor when executing instructions from that software module.

[0177] Any connection is also legitimately referred to as computer-readable medium. For example, if 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 technology (such as infrared (IR), radio, and microwave), then that coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technology (such as infrared, radio, and microwave) is included in the definition of medium. As used herein, disk and disc include compact discs (CDs), laser discs, optical discs, digital multi-purpose discs (DVDs), floppy disks, and... Disks, where disks often magnetically reproduce data, and discs optically reproduce data using lasers. Therefore, in some aspects, computer-readable media may include non-transient computer-readable media (e.g., tangible media). Additionally, in other aspects, computer-readable media may include transient computer-readable media (e.g., signals). Combinations of the above should also be included within the scope of computer-readable media.

[0178] Therefore, certain aspects may include computer program products for performing the operations given herein. For example, such computer program products may include computer-readable media on which instructions are stored (and / or encoded) that can be executed by one or more processors to perform the operations described herein. Figure 7 and 8 The instructions for operation explained in the Chinese.

[0179] Furthermore, it should be understood that modules and / or other suitable means for performing the methods and techniques described herein can be downloaded and / or otherwise obtained by the 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 can be provided via a storage device (e.g., RAM, ROM, physical storage media such as CDs or floppy disks, etc.) so that the device can obtain the various methods once the storage device is coupled to or provided to the user terminal and / or base station. Furthermore, any other suitable techniques appropriate for providing the methods and techniques described herein to the device may be utilized.

[0180] It will be understood that the claims are not limited to the precise configurations and components described above. Various modifications, substitutions, and variations can be made to the layout, operation, and details of the methods and apparatus described above without departing from the scope of the claims.

Claims

1. A method for wireless communication by a user equipment (UE), comprising: Detecting a paging downlink control channel including downlink control information, wherein the downlink control information includes a first indicator bit and a second indicator bit, the first indicator bit and the second indicator bit being configured to signal the presence of short messages and / or scheduling information in the downlink control information; The short message in the downlink control information is processed if at least one of the first indicator bit and the second indicator bit is present in the signaling notification short message; The scheduling information in the downlink control information is processed if at least one of the first indicator bit and the second indicator bit signals the existence of scheduling information and the UE is not in a connected state; as well as If at least one of the first indicator bits and the second indicator bit signals the presence of scheduling information and the UE is in a connected state, the scheduling information in the downlink control information is not processed.

2. The method of claim 1, wherein the short message indicates system information update.

3. The method of claim 1, wherein the short message instructs the Earthquake and Tsunami Warning System (ETWS) to update.

4. The method of claim 1, further comprising: Decode the downlink control information scrambled with Paging Radio Network Temporary Identifier (P-RNTI).

5. The method of claim 1, wherein the connectivity state of the UE is a Radio Resource Control (RRC) connectivity state.

6. The method of claim 1, wherein the scheduling information schedules the Physical Downlink Shared Channel (PDSCH).

7. A user equipment (UE), comprising: Memory, which includes computer-executable instructions; A processor configured to execute the computer-executable instructions and cause the UE to perform the following operations: Detecting a paging downlink control channel including downlink control information, wherein the downlink control information includes a first indicator bit and a second indicator bit, the first indicator bit and the second indicator bit being configured to signal the presence of short messages and / or scheduling information in the downlink control information; The short message in the downlink control information is processed if at least one of the first indicator bit and the second indicator bit is present in the signaling notification short message; The scheduling information in the downlink control information is processed if at least one of the first indicator bit and the second indicator bit signals the existence of scheduling information and the UE is not in a connected state; as well as If at least one of the first indicator bits and the second indicator bit signals the presence of scheduling information and the UE is in a connected state, the scheduling information in the downlink control information is not processed.

8. The UE of claim 7, wherein the short message indicates a system information update.

9. The UE of claim 7, wherein the short message indicates an update to the Earthquake and Tsunami Warning System (ETWS).

10. The UE of claim 7, wherein the processor is further configured to cause the UE to perform the following operations: Decode the downlink control information scrambled with Paging Radio Network Temporary Identifier (P-RNTI).

11. The UE of claim 7, wherein the connectivity state of the UE is a Radio Resource Control (RRC) connectivity state.

12. The UE as described in claim 7, wherein the scheduling information schedules the Physical Downlink Shared Channel (PDSCH).

13. A user equipment (UE), comprising: A means for detecting a paging downlink control channel including downlink control information, wherein the downlink control information includes a first indicator bit and a second indicator bit, the first indicator bit and the second indicator bit being configured to signal the presence of short messages and / or scheduling information in the downlink control information; A means for processing the short message in the downlink control information in the presence of a signaling notification short message in at least one of the first indicator bit and the second indicator bit; A means for processing the scheduling information in the downlink control information when at least one of the first indicator bit and the second indicator bit signals the presence of scheduling information and the UE is not in a connected state; as well as A means for not processing the scheduling information in the downlink control information when at least one of the first indicator bit and the second indicator bit signals the presence of scheduling information and the UE is in a connected state.

14. The UE of claim 13, wherein the short message indicates a system information update.

15. The UE of claim 13, wherein the short message indicates an update to the Earthquake and Tsunami Warning System (ETWS).

16. The UE of claim 13, further comprising: A means for decoding the downlink control information scrambled with a Paging Radio Network Temporary Identifier (P-RNTI).

17. The UE of claim 13, wherein the connectivity state of the UE is a Radio Resource Control (RRC) connectivity state.

18. The UE of claim 13, wherein the scheduling information schedules the Physical Downlink Shared Channel (PDSCH).

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