CN108270804B - Communication method and communication device for the transmission of a replica of a signal - Google Patents
Communication method and communication device for the transmission of a replica of a signal Download PDFInfo
- Publication number
- CN108270804B CN108270804B CN201611255489.2A CN201611255489A CN108270804B CN 108270804 B CN108270804 B CN 108270804B CN 201611255489 A CN201611255489 A CN 201611255489A CN 108270804 B CN108270804 B CN 108270804B
- Authority
- CN
- China
- Prior art keywords
- time window
- signal
- indication
- window
- replicas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Abstract
Embodiments of the present disclosure relate to a communication method and a communication device for transmission of a replica of a signal. For example, at a communication device at a transmitting end, a first time window for transmitting at least a portion of a plurality of replicas of a signal is determined, and at least a portion of the replicas are transmitted within the first time window. Moreover, the transmitting-side communication device also transmits an indication associated with the first time window. A corresponding method implemented at a communication device at the receiving end and a communication device capable of implementing the above method are also disclosed.
Description
Technical Field
Embodiments of the present disclosure relate generally to communication technologies, and more particularly, to a communication method and a communication device for transmission of a replica of a signal.
Background
Currently, in the Long Term Evolution (LTE) standard, three technologies supporting Internet of things (IoT) have been proposed, including: machine Type Communication (MTC), enhanced machine type communication (eMTC), and narrowband internet of things (NB-IoT) technologies. To implement IoT, one important goal is to increase coverage, e.g., requiring up to-164 dB of gain. The basic idea of the above-described technique for achieving coverage enhancement is to use replication. For example, multiple copies (or duplicates) of the same packet are repeatedly transmitted in multiple subframes.
According to the three techniques described above in LTE, these replicas are typically transmitted in multiple consecutive valid subframes for the IoT. The network device and the terminal device can know the positions of all the valid subframes according to the absolute subframe numbers. That is, the timing for transmission replication is based entirely on the absolute subframe number.
However, in unlicensed spectrum, since a Listen Before Talk (LBT) procedure is to be performed, neither the network device nor the terminal device can know the positions of an Uplink (UL) subframe and a Downlink (DL) subframe in advance, that is, the positions of valid subframes for the IoT. This may result in the receiver failing to properly combine the received multiple copies and thus failing to achieve effective coverage enhancement.
Disclosure of Invention
In general, embodiments of the present disclosure propose communication methods and communication devices for the transmission of a replica of a signal.
In a first aspect, embodiments of the present disclosure provide a communication method implemented at a sending side. The method comprises the following steps: determining a first time window for transmitting at least a portion of the plurality of replicas of the signal; transmitting at least a portion of the replica within a first time window; and sending an indication associated with the first time window.
In a second aspect, embodiments of the present disclosure provide a communication method implemented by a receiving party. The method comprises the following steps: detecting an indication associated with a first time window within which at least a portion of the plurality of replicas of the signal has been transmitted; determining a first time window based on the indication; and determining the signal based at least in part on the received replica within the first time window.
In a third aspect, embodiments of the present disclosure provide a communication device at a transmitting end. The communication device includes: a controller configured to determine a first time window for transmitting at least a portion of a plurality of replicas of a signal; and a transceiver configured to: at least a portion of the replica is transmitted within a first time window, and an indication associated with the first time window is transmitted.
In a fourth aspect, embodiments of the present disclosure provide a communication device at a receiving end. The communication device includes: a transceiver configured to detect an indication associated with a first time window within which at least a portion of a plurality of replicas of a signal has been transmitted; and a controller configured to: a first time window is determined based on the indication, and the signal is determined based at least in part on a replica received within the first time window.
As will be understood from the following description, according to an embodiment of the present disclosure, both communicating parties determine timings for transmitting multiple copies of a signal based on a time window. In this way, the receiver can also know the timing of the replica of the transmitted signal without knowing the subframe timing, thereby increasing the probability that the signal is successfully demodulated or decoded and enhancing transmission coverage.
It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
FIG. 1 illustrates an example communication network in which embodiments of the present disclosure may be implemented;
fig. 2 illustrates a flow chart of an example communication method implemented at a sender in accordance with certain embodiments of the present disclosure;
FIG. 3 illustrates example timing for transmitting a replica of a signal based on a first time window, in accordance with certain embodiments of the present disclosure;
fig. 4 illustrates example timing of transmitting a replica of a signal based on a first time window, in accordance with certain other embodiments of the present disclosure;
fig. 5 illustrates a flow chart of an example communication method implemented at a sender in accordance with certain other embodiments of the present disclosure;
fig. 6 illustrates an example timing of determining a first window length of a first time window based on a reference window length of the reference time window, in accordance with certain embodiments of the present disclosure;
7(a) and 7(b) illustrate example timings for determining a first window length of a first time window based on a reference window length of a reference time window, in accordance with certain other embodiments of the present disclosure;
FIG. 8 illustrates example timing of sending an indication associated with a first time window, in accordance with certain embodiments of the present disclosure;
fig. 9 illustrates example timings of sending an indication associated with a first time window, in accordance with certain other embodiments of the present disclosure;
fig. 10 illustrates a flow chart of an example communication method implemented at a recipient in accordance with certain embodiments of the present disclosure;
FIG. 11 illustrates a block diagram of an apparatus according to certain embodiments of the present disclosure;
fig. 12 shows a block diagram of an apparatus according to certain other embodiments of the present disclosure; and
FIG. 13 illustrates a block diagram of a device suitable for implementing embodiments of the present disclosure.
Throughout the drawings, the same or similar reference numbers refer to the same or similar elements.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
The term "communication device" as used herein refers to other entities or devices having a function of transceiving information in a communication network, including, for example, terminal devices and network devices.
The term "network device" as used herein refers to any suitable entity or device capable of providing a cell or coverage such that a terminal device may access a network through or receive services from it. Examples of network devices include, for example, base stations. The term "base station" (BS) as used herein may refer to a node B (NodeB or NB), an evolved node B (eNodeB or eNB), a Remote Radio Unit (RRU), a Radio Head (RH), a Remote Radio Head (RRH), a relay, or a low power node such as a pico base station, a femto base station, or the like.
The terms "terminal device" or "user equipment" (UE) as used herein refer to any entity or device capable of wireless communication with network devices or with each other. As an example, the terminal device may include a Mobile Terminal (MT), a Subscriber Station (SS), a Portable Subscriber Station (PSS), a Mobile Station (MS) or an Access Terminal (AT), the above-mentioned device mounted in a vehicle, and a machine or an appliance having a communication function, and the like.
The term "signal" as used herein refers to any suitable signal suitable for communication in a communication system, including, for example, a data signal, a control signal, or a pilot signal. The term "data signal" as used herein refers to a signal carrying traffic data transmitted between communication devices; "control signal" refers to a signal that carries control information or control signaling that assists in the transmission of data signals; the "pilot signal" or the "reference signal" refers to a signal known to both parties of communication, and the receiving side can perform channel estimation, or demodulate or decode a data signal or a control signal, or the like based on the signal.
The term "replica" as used herein refers to a replica of the signal, including, for example, a complete replica, the use of different channel codes, etc. By transmitting multiple copies of the signal at multiple transmit occasions, the transmit energy of the signal can be increased, thereby increasing the probability that the receiver will correctly detect the signal and further enhancing transmit coverage.
The term "time window" as used herein refers to any suitable time period within which multiple copies of a signal may be transmitted.
The terms "include" and variations thereof as used herein are inclusive and open-ended, i.e., "including but not limited to. The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment". Relevant definitions for other terms will be given in the following description.
As described above, the timing of duplicate transmissions in IoT based solely on absolute subframe number can cause significant problems in unlicensed spectrum. For example, because the positions of the UL subframe and the DL subframe cannot be known in advance, the receiving side cannot know the correct timing of the valid subframe for the duplicate transmission. Accordingly, the receiver cannot correctly combine the received multiple copies, and thus cannot receive the signal transmitted by the transmitter. This results in inefficient coverage enhancement.
To address, at least in part, the above problems, and other potential problems, embodiments of the present disclosure provide for determining the timing for transmitting multiple copies of a signal based on a time window rather than absolute subframe timing. In this way, the receiving side can know the copy timing of the transmitted signal even without knowing the subframe timing, so that the probability of successfully demodulating or decoding the signal by the receiving side can be increased, and the transmission coverage is effectively increased.
Fig. 1 illustrates an example communication network 100 in which embodiments of the present disclosure may be implemented. The communication network 100 includes two communication devices 110 and 120 (referred to as "first communication device 110" and "second communication device 120", respectively). The first communication device 110 and the second communication device 120 may communicate with each other through the communication network 100. It should be understood that the number of communication devices shown in fig. 1 is for illustration purposes only and is not intended to be limiting. Network 100 may include any suitable number of communication devices.
According to embodiments of the present disclosure, the first communication device 110 and the second communication device 120 may be implemented as any suitable entity or device capable of communicating in the communication network 100. In some embodiments, one of the first communication device 110 and the second communication device 120 may be implemented as a network device, while the other communication device may be implemented as a terminal device. In certain other embodiments, the first communication device 110 and the second communication device 120 may both be implemented as terminal devices in device-to-device (D2D) or machine-to-machine (M2M) communication, for example.
The communications in network 100 may conform to any suitable wireless communication technology and corresponding communication standard. Examples of communication technologies include, but are not limited to, Long Term Evolution (LTE), LTE-advanced (LTE-a), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), global system for mobile communications (GSM), orthogonal frequency division multiple access (OFDM), Wireless Local Area Network (WLAN), Worldwide Interoperability for Microwave Access (WiMAX), bluetooth, Zigbee technology, Machine Type Communication (MTC), D2D, or M2M, among others. Moreover, the communication may be performed according to any suitable communication protocol, including, but not limited to, Transmission Control Protocol (TCP)/Internet Protocol (IP), Hypertext transfer protocol (HTTP), User Datagram Protocol (UDP), Session Description Protocol (SDP), and the like.
As described above, embodiments of the present disclosure provide for determining the timing for transmitting and receiving multiple replicas of a signal based on a time window. As shown in fig. 1, when a first communication device 110 is to transmit a signal to a second communication device 120, the first communication device 110 first determines (130) a time window (referred to as a "first time window") for transmitting at least a portion of a plurality of replicas of the signal. The first communication device 110 then transmits (135) at least a partial copy of the signal within the first time window and transmits (140) an indication associated with the first time window.
It should be understood that although in fig. 1 the duplication of the transmitted signal and the indication to transmit are shown as two separate actions, this is by way of example only and not by way of limitation. In some embodiments, the indication associated with the first time window may be transmitted with the replica of the signal over the same time period (e.g., over the first time window). Specific examples of this aspect will be described in detail later.
According to embodiments of the present disclosure, the delivery of the replica of the signal between the communication devices in the network 100 is no longer based on absolute frame or sub-frame timing, but rather on a time window representing a period of time. Accordingly, the receiving side can detect a plurality of replicas of the signal according to the indication on the time window without knowing the subframe timing in advance, and obtain the signal based on the detected plurality of replicas. The signal replication transmission mode is more flexible and efficient, and can effectively increase the transmission coverage.
The principles and specific embodiments of the present disclosure will be described in detail below with reference to fig. 2 through 10 from the perspective of a sender and a receiver, respectively. Reference is first made to fig. 2, which illustrates a flow chart of an example communication method 200 implemented at a sender in accordance with certain embodiments of the present disclosure. The method 200 may be implemented at the first communication device 110 or the second communication device 120 as shown in fig. 1. For ease of discussion, the method 200 is described in detail below with the first communication device 110 as the sender and the second communication device 120 as the receiver.
As shown in fig. 2, at block 205, the first communication device 110 determines a first time window for transmitting at least a portion of the plurality of replicas of the signal. At block 210, the first communication device 110 transmits at least a partial copy of the signal within the determined first time window.
As described above, in accordance with embodiments of the present disclosure, the signal may be any suitable signal suitable for communication in the communication network 100, and the first time window may be any suitable time period suitable for transmitting multiple copies of the signal. Fig. 3 and 4 illustrate specific example timings of transmitting signal replicas based on a first time window, where fig. 3 illustrates example timings of transmitting replicas of a Downlink Control Information (DCI) signal within a PDCCH time window for a Physical Downlink Control Channel (PDCCH) according to some embodiments of the present disclosure, and fig. 4 illustrates example timings of transmitting replicas of a DL data signal within a PDSCH time window for a Physical Downlink Shared Channel (PDSCH) according to some embodiments of the present disclosure.
In the example shown in fig. 3, the first communication device 110 is implemented as a network device (e.g., a base station) and the signal is implemented as a DCI signal transmitted on a PDCCH channel. Accordingly, the first time window 305 is implemented as a PDCCH time window for transmitting a DCI signal on a PDCCH channel. As shown in fig. 3, the first time window 305 includes a plurality of subframe sets 310, 315, and 320. Each subframe set 310, 315, or 320 consists of a number of consecutive subframes, including several DL subframes 325 (labeled "D") and UL subframes 330 (labeled "U"). The first communication device 110 transmits multiple copies of the same DCI signal in all DL subframes 325 within the first time window 305.
In the example shown in fig. 4, the first communication device 110 is also implemented as a network device (e.g., a base station), while the signals are implemented as DL data signals transmitted on the PDSCH channel. Accordingly, the first time window 405 is implemented as a PDSCH time window for transmitting DL data signals on the PDSCH channel. As shown in fig. 4, the first time window 405 includes subframe sets 410 and 415, each subframe set 410 or 415 including a plurality of consecutive subframes consisting of several DL subframes 325 and UL subframes 330. The first communication device 110 transmits multiple copies of the same DL data signal in all DL subframes 325 within the first time window 405.
It should be understood that the number of subframe sets and the number of DL subframes and UL subframes in each subframe set shown in fig. 3 and 4 are merely examples and are not limiting. As described above, the first time window 305 or 405 may be any suitable time period. For example, the first time window 305 or 40 may include any suitable number of subframe sets, and each subframe set may include any suitable number of DL subframes and UL subframes.
In accordance with embodiments of the present disclosure, the first communication device 110 may determine the start time of the first time window in any suitable manner. In some embodiments, the first communication device 110 may perform an LBT procedure for the unlicensed spectrum in response to the duplication of the signal to be transmitted. After detecting the free channel, the first communication device 110 may take the start time of the access channel as the start time of the first time window. It should be understood that any suitable other time at which the first communication device 110 can initiate a signal transmission may also be used as the starting time of the first time window.
According to an embodiment of the present disclosure, the first communication device 110 may determine the window length of the first time window (referred to as "first window length") at any suitable time. For example, the first communication device 110 may determine a first window length of the first time window before transmitting the replica of the signal. Alternatively, the first communication device 110 may determine the first window length during transmission of the signal. Specific embodiments will be described in detail later.
The first communication device 110 may determine the first window length of the first time window based on any suitable factor. In embodiments where the first window length is determined prior to transmitting the replica of the signal, the first communication device 110 may determine the first window length based on historical experience. For example, the window length used when copying the signal transmitted previously is set as the first window length. Alternatively, the first communication device 110 may determine the first window length based on channel fading conditions. For example, the first communication device 110 may determine a channel fading or congestion condition prior to transmitting the replica of the signal. The first communication device 110 may determine a longer first window length if the channel fades or congestion is severe. In addition, the first communication device 110 may also determine the reference time window based on characteristics of the signal to be transmitted. For example, if the signal to be transmitted is a control signal containing fewer information bits, the first communication device 110 may determine that the first time window has a shorter first window length. Whereas for data signals containing more information bits, the first communication device 110 may determine that the first time window has a longer first window length.
In some embodiments, the first communication device 110 may determine the first window length of the first time window based on a reference window length of the reference time window. The first communication device 110 may determine the first window length based on the reference window length in any suitable manner. As an example, the first communication device 110 may fixedly set the first window length of the first time window to the reference window length of the reference time window.
Additionally or alternatively, to further enhance coverage, the first communication device 110 may also dynamically adjust the first window length of the first time window based on a number of replicas of the signal to be transmitted on the basis of the reference window length. One specific example of dynamically adjusting the first window length of the first time window based on the reference window length is discussed below in conjunction with fig. 5.
Fig. 5 illustrates an example method 500 of dynamically adjusting a first window length of a first time window at a first communication device 110 in accordance with certain embodiments of the present disclosure. As shown, at block 505, the first communication device 110 determines a reference number of signal replicas associated with a reference time window. The reference number may be determined in any suitable manner. For example, in embodiments where the first window length of the first time window is determined prior to transmitting the replica of the signal, the first communication device 110 may estimate in advance the number of replicas of the signal that can be transmitted within the reference time window, and take the estimated number as the reference number. In embodiments where the first window length is determined during transmission of the signal replica, the first communication device 110 may first transmit some replicas of the signal using the reference time window. After the reference time window ends, the first communication device 110 determines how many replicas have been transmitted within the reference time window and may then take the number of replicas that have been transmitted as the reference number.
After determining the reference number, the first communication device 110 compares the number of replicas to be transmitted within the first time window to the determined reference number at block 510. At block 515, if the number of replicas to be transmitted is greater than the reference number, i.e., the reference time window cannot accommodate enough replicas, the first communication device 110 determines that the first window length of the first time window should be greater than the reference window length of the reference time window.
In this way, the first communication device 110 may dynamically adjust the first window length of the first time window according to the actual transmission requirements of the signal replica. For example, the first communication device 110 may transmit signals using a longer first time window when channel fading is severe and more signal replicas need to be transmitted. In addition, by dynamically adjusting the first window length of the first time window based on the reference time window during signal transmission, the signal can be transmitted using a longer first time window in case the reference time window cannot accommodate enough duplication due to failure to successfully access the channel, for example, due to LBT failure, so as to ensure the required coverage performance.
A specific example of determining the first window length of the first time window based on the reference window length of the reference time window is described below with reference to fig. 6, 7(a), and 7 (b). Reference is first made to fig. 6, which illustrates an example timing of determining a first window length based on a reference window length before transmitting a replica of a signal. In this example, the reference time window 605 includes three consecutive frames 610 (labeled "F"). The first communication device 110 determines, by estimation, that not enough signal replicas can be transmitted within the reference time window 605 before transmitting the signal replicas, and then determines the first time window 610 to comprise three reference time windows 605.
It should be understood that the reference window length of the reference time window shown in fig. 6 is merely an example and not a limitation. According to embodiments of the present disclosure, the reference time window may have any suitable reference window length. For example, the reference time window may include any suitable number of frames or subframes.
It should also be understood that the determined first window length of the first time window is also merely an example and not a limitation. The first time window may comprise any suitable multiple of the reference time window. As an example, the first time window may include an integer multiple of the reference time window, e.g., M ═ 2N,3N, …, where M is the first window length of the first time window and N is the reference window length of the reference time window. As an alternative example, the first time window may include a non-integer multiple of the reference time window, e.g., M ═ N (1+1/2), (1+1/4) N, ….
Fig. 7(a) and 7(b) show example timings of determining a first window length based on a reference window length in a process of transmitting signal duplication, where fig. 7(a) shows example timings of a plurality of determinations and fig. 7(b) shows example timings of a single determination. In the example shown in FIG. 7(a), three reference time windows 705-1, 705-2, and 705-3 (referred to as "first reference time window 705-1", "second reference time window 705-2", and "third reference time window 705-3", respectively, collectively as "reference time window 705") each include three consecutive frames 610. The first communication device 110 first transmits multiple copies of the signal within the first reference time window 705-1. At the end of the first reference time window 705-1, the first communication device 110 determines 715 that the first time window 710 should also include a second reference time window 705-2, i.e., two reference time windows 705, because not all signal replicas have been transmitted.
Likewise, at the end of the second reference time window 705-2, no full signal copy has yet been transmitted, so the first communication device 110 determines (720) that the first time window 710 should further include a third reference time window 705-3, i.e., three reference time windows 705. At the end of the third reference time window 705-3, the first communication device 110 has transmitted all replicas, so the first communication device 110 finally determines 725 that the first time window 705 comprises three reference time windows 705.
Two reference time windows 730 and 735 are shown in fig. 7(b) (referred to as "fourth reference time window 730" and "fifth reference time window 735", respectively). The first communication device 110 first transmits multiple copies of the signal within the fourth reference time window 730. At the end of the fourth reference time window 730, the first communication device 110 determines that some signal replicas remain not transmitted and determines 740 that the first time window 745 should also include a fifth reference time window 735.
It should be understood that although in fig. 7(b), the fourth reference time window 730 and the fifth reference time window 735 are each shown as including three consecutive frames 610, this is merely an example and not a limitation. In some embodiments, the first communication device 110 may determine how long a time window is still needed to transmit the remaining replicas based on the number of signal replicas to be transmitted at the end of the fourth reference time window 730. That is, the first communication device 110 may determine the reference window length of the fifth reference time window 735 based on the number of replicas to be transmitted.
Continuing next with fig. 2, at block 215 the first communication device 110 transmits an indication associated with the first time window. As described above, although the indication that the copy of the transmitted signal is associated with transmitting the first time window is illustrated as two acts performed independently in two separate blocks, this does not imply that these two acts are necessarily performed independently. In some embodiments, a copy of the signal may be sent with an associated indication within a first time window, specific examples of which are described in detail below.
The indication may indicate any suitable information associated with the first time window. In some embodiments, the indication may indicate a first window length of the first time window. Accordingly, the receiving party (e.g., the second communication device 120) may detect copies of the signal sent by the sending party based on the indication and detect the signal based on the copies. A specific embodiment of the receiving side will be described in detail later with reference to fig. 10.
Additionally or alternatively, the indication may also indicate a signal transmitted within the first time window, in order to indicate to the receiving party to which signal the transmitted copy belongs. Such an indication of the signal may also indicate to the receiving party which time window the transmitted copy belongs to, since all copies transmitted within one time window may belong to the same signal. By simultaneously sending the indication of the length of the first window of the first time window and the indication of the signal sent within the first time window, the receiver can perform double detection on the indication, thereby timely finding the false detection or missed detection of the indication and timely correcting the corresponding detection error.
In certain other embodiments, the indication associated with the first time window may also indicate whether another time window (referred to as a "second time window") follows the first time window. For example, the first communication device 110 can determine whether another portion of the copy is pending transmission after the first time window. If the first communication device 110 transmits only a portion of the replica of the signal to be transmitted within the first time window, the first communication device 110 may determine that another portion of the replica needs to be transmitted after the end of the first time window. The first communication device 110 may then determine a second time window for transmitting another partial copy. The process of determining the second time window is similar to the process of determining the first time window described above, and therefore, the detailed description thereof is omitted here.
After determining the second time window, the first communication device 110 may send an indication of the second time window after the first time window as an indication associated with the first time window to indicate to the receiving party that detection of the duplication of the signal still needs to be continued after the first time window. Additionally or alternatively, the first communication device 110 may transmit an indication of the window length of the second time window (referred to as "second window length") as the indication associated with the first time window. The indication of the second window length may also be used to implicitly indicate to the receiving side that the second time window follows the first time window. If the first communication device 110 determines that all copies of the signal have been transmitted within the first time window, the first communication device 110 may transmit an indication that no other time windows follow the first time window to indicate to the receiving party when to stop detection of signal copying.
It will be appreciated that after the second time window is determined, the first communication device 110 may continue to determine subsequent time windows if there are copies of the signal to be transmitted. The specific process is similar to the process of determining the second time window described above, and therefore, the detailed description thereof is omitted here.
In accordance with embodiments of the present disclosure, the indication associated with the first time window may be transmitted in any suitable manner. As described above, the indication may be sent within the first time window along with a replica of the signal. In some embodiments, the associated indication may be carried in all of the copies sent. Accordingly, the receiver may simultaneously detect the associated indications when detecting a duplicate of the signal. Sending the indication based on all replications may be implemented in any suitable manner. For example, if the signal to be transmitted includes a reference signal, e.g., a cell-specific reference signal (CRS) in the DL or a demodulation reference signal (DM-RS) in the UL, the reference signal may be generated based on the associated indication and then multiple copies of the generated reference signal may be transmitted within the first time window. It will be appreciated that the signal to be transmitted may comprise any other suitable signal, for example a data signal, in addition to the reference signal.
One specific example is discussed below. In this example, the signal to be transmitted comprises DL CRS, denoted as sequence
Wherein the content of the first and second substances,
represents the number of downlink Physical Resource Blocks (PRBs), and c (n) represents a long 63 Gold sequence, which is initialized as follows:
wherein n issIndicates the absolute slot number within the radio frame, l indicates the number of OFDM symbols within the slot,
denotes cell identity, and NCPIndicating the configuration of the Cyclic Prefix (CP).
In equation (2), nindicatorThe representation indicates an index. That is, the transmitted CRS is initialized based on the associated indication. Accordingly, the receiver may obtain an associated indication upon receiving the CRS.
Another example of generating a reference signal based on an indication is discussed below. In this example, the signal to be transmitted comprises UL DM-RS, represented as a sequence
Wherein α represents a cyclic shift, q represents the root of the sequence, and
indicating the length of the reference signal.
In this example, q in equation (3) is selected based on the window length of the remaining time window, and the value of α is selected based on an indication of the signal (e.g., an identification of the signal).
In addition to generating the signal itself based on the associated indication, as an alternative example, a scrambling code for scrambling the signal may also be generated based on the indication. One specific example is discussed below. In this example, a scrambling sequence based on a Gold sequence of length 63 is initialized at the beginning of each subframe as follows:
wherein n isRNTICorresponds to a Radio Network Temporary Identity (RNTI) associated with the transmission, and p denotes a codeword. As shown in equation (4), in this example, the scrambling sequence is based on an associated indication (e.g., n)indicator) And initialized.
In addition to utilizing all replicas of the signal to carry the associated indication, in some embodiments, the indication may be embedded at certain replicas to be transmitted within the time window. Fig. 8 shows a specific example of such an indication transmission manner. In this example, the first communication device 110 transmits a replica of the signal using three PDSCH time windows 805, 810 and 812 (referred to as the "first PDSCH time window 805", "second PDSCH time window 810" and "third PDSCH time window 815", respectively). In the first PDSCH time window 805 and the second PDSCH time window 810, an indication 820 indicating that another time window follows is sent at the location of the number of replicas. In the third PDSCH time window 815, an indication 825 indicating that no other time windows follow is sent at the location of the number of replicas. Embedding of the above indication may be accomplished in any suitable manner. For example, rate matching or puncturing may be utilized to embed the indication at the location of the corresponding copy.
It should be understood that while fig. 8 illustrates an indication of whether additional time windows are to follow, this is by way of example only and not by way of limitation. Other indications indicating association with the first time window may also be embedded at certain replicas within the first time window.
The above-described indication embedded at the replication may be implemented in any suitable form. This indication may be implemented as control signaling of the physical layer (PHY layer) or layer 1(L1), as an example. As an alternative example, the indication may be represented using a predefined sequence. For example, different sequences known to the transceiver may be predefined for indicating different information.
In addition to sending the indication along with a copy of the signal, the indication may be sent separately. The separate transmission of the indication may be implemented in any suitable way. In some embodiments, the associated indication may be sent within an indicated time window following the time window in which the signal replica was sent. Fig. 9 shows a specific example. In this example, the first communication device 110 also transmits a copy of the signal in the first PDSCH time window 805, the second PDSCH time window 810 and the third PDSCH time window 815. As shown, each time window 805, 810, or 815 is followed by an indicated time window 905, 910, or 915 (referred to as a "first indicated time window 905," a "second indicated time window 910," or a "third indicated time window 915," respectively). The first communication device 110 transmits indications associated with the first PDSCH time window 805, the second PDSCH time window 810 and the third PDSCH time window 815 within the first indicated time window 905, the second indicated time window 910 and the third indicated time window 915, respectively.
In some other embodiments, an indication associated with a signal to be transmitted may be transmitted along with another signal associated with the signal to be transmitted. For example, when a replica of a signal is to be transmitted on a PDSCH, a Physical Uplink Shared Channel (PUSCH), or a physical uplink control channel PUCCH, a corresponding indication may be transmitted along with a DCI signal representing a DL or UL grant for the PDSCH, PUSCH, or PUCCH. The process of sending the indication along with the DCI signal is similar to the process of sending the indication along with the signal to be sent described above, and thus is not described herein again. It will be appreciated that it is also possible to indicate that other signals associated with the signal to be transmitted are transmitted together. Embodiments of the present disclosure are not limited in this respect.
Fig. 10 illustrates a flow chart showing an example communication method 1000 implemented at a recipient in accordance with certain embodiments of the present disclosure. The method 1000 may be implemented at the first communication device 110 or the second communication device 120 as shown in fig. 1. For ease of discussion, the method 1000 is described in detail below with the first communication device 110 as the sender and the second communication device 120 as the receiver.
As shown, at block 1005, the second communication device 120 detects an indication associated with the first time window. The detection of this indication may be achieved in any suitable manner. In embodiments where the sender would indicate that it is sent separately after the duplicate sending of the signal, the second communication device 120 may detect the indication separately. For example, the second communication device 120 may detect the associated indication at the corresponding location after detecting the duplication of the signal. In embodiments where the signal transmitted by the sender comprises a reference signal and the sender is to transmit an indication together with a copy of the reference signal as described above, the second communication device 120 may obtain the associated indication by detecting a sequence of the reference signal.
In embodiments where the sender will indicate that the duplicate of the signal is to be sent together, the second communication device 120 may first detect the duplicate of the signal by blind detection. The second communication device 120 may then demodulate or decode the signal based on the detected replica, and the associated indication may be obtained at the same time the transmitted signal is obtained. In embodiments where the sender transmits the indication along with another signal associated with the transmitted signal, the second communication device 120 may detect the associated other signal and may obtain the indication associated with the transmitted signal at the same time that the signal is detected.
As described above, the indication associated with the first time window may indicate any suitable information associated with the first time window in accordance with embodiments of the present disclosure. For example, the indication may indicate a first window length of the first time window, a signal transmitted within the first time window, whether the first time window is followed by a second time window, and/or a second window length of the second time window following the first time window. Accordingly, the second communication device 120 may perform subsequent operations based on these indications, as will be described in detail later.
After detecting the indication associated with the first time window, the second communication device 120 determines the first time window based on the detected indication at block 1010. In embodiments where an indication of a first window length of the first time window is detected, the second communication device 120 may determine the timing of the first time window based on the indication.
Additionally or alternatively, if the second communication device 120 detects an indication of a signal transmitted within the first time window (e.g., an identification of the signal), the second communication device 120 may accordingly determine to which signal the transmitted replica belongs. Furthermore, the second communication device 120 may also determine to which time window the transmitted replica belongs on the basis thereof, since all replicas transmitted by the first communication device 110 within one time window belong to the same signal. In case the second communication device 120 detects an indication of the first window length of the first time window and an indication of the signal transmitted within the first time window at the same time, as described above, the second communication device 120 may perform a double detection of the indication in order to find a false detection or an missed detection of the indication in time and thus correct the corresponding detection error in time.
After determining the first time window, the second communication device 120 determines a signal transmitted by the first communication device 110 based at least in part on a replica of the signal received within the first time window at block 1015. In embodiments where the first time window is detected to be followed by an indication of the second time window and/or an indication of the second window length of the second time window, the second communication device 120 may also determine the second time window after the first time window based on the indication, e.g., determine the timing of the second time window. The second communication device 120 may then continue to detect a duplication of the signal within the second time window. The second communication device 120, in demodulating or decoding the signal, may perform demodulation or decoding of the signal after combining together replicas of the signal detected within the first time window and the second time window. If the second communication device 120 detects no indication of other time windows after the first time window, the second communication device 120 may determine that the detection of signal duplication may cease after the first time window.
It should be understood that the operations and related features performed by the first communication device 110 described above with reference to the schematic diagrams of fig. 2 to 9 are also applicable to the method 1000 performed by the second communication device 120, and have the same effects, and detailed details are not repeated.
Fig. 11 illustrates a block diagram of an apparatus 1100 in accordance with certain embodiments of the present disclosure. It is to be appreciated that the apparatus 1100 can be implemented on the first communication device 110 side shown in fig. 1. As shown in fig. 11, an apparatus 1100 (e.g., first communication device 110) includes: a first determining unit 1105 configured to determine a first time window for transmitting at least a part of the plurality of replicas of the signal; a first transmitting unit 1110 configured to transmit at least a part of the copy within a first time window; and a second transmitting unit 1115 configured to transmit an indication associated with the first time window.
It should be understood that means (not shown) for performing each step of the methods 200 and 500 described with reference to fig. 2-9 may also be included in the apparatus 1100. The operations and features described above in conjunction with fig. 2-9 are also applicable to the apparatus 1100 and the units included therein, and have the same effects, and detailed description is omitted here.
Fig. 12 illustrates a block diagram of an apparatus 1200 in accordance with certain embodiments of the present disclosure. It is to be appreciated that the apparatus 1200 may be implemented on the second communication device 120 side shown in fig. 1. As shown, apparatus 1200 (e.g., second communication device 120) includes: a detection unit 1205 configured to detect an indication associated with a first time window within which at least a portion of the plurality of replicas of the signal has been transmitted; a second determining unit 1210 configured to determine a first time window based on the indication; and a third determining unit 1210 configured to determine the signal based at least in part on the received replica within the first time window.
It should also be understood that means (not shown) for performing each step of the method 1000 described with reference to fig. 10 may also be included in the apparatus 1200. The operations and features described above in connection with fig. 10 are equally applicable to apparatus 1200 and the units included therein, and have the same effects, and detailed description is omitted here.
The elements included in apparatus 1100 and apparatus 1200 may be implemented using various means including software, hardware, firmware or any combination thereof. In one embodiment, one or more of the units may be implemented using software and/or firmware, such as machine executable instructions stored on a storage medium. In addition to, or in the alternative to, machine-executable instructions, some or all of the elements in apparatus 1100 and apparatus 1200 may be implemented, at least in part, by one or more hardware logic components. By way of example, and not limitation, exemplary types of hardware logic components that may be used include Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standards (ASSPs), systems on a chip (SOCs), Complex Programmable Logic Devices (CPLDs), and so forth.
The elements shown in fig. 11 and 12 may be implemented partially or wholly as hardware modules, software modules, firmware modules, or any combination thereof. In particular, in certain embodiments, the processes, methods, or procedures described above may be implemented by a communication device or hardware in a communication device. For example, the communications device or communications device may implement the methods 200, 500, and 1000 with its transmitter, receiver, transceiver, and/or processor or controller.
Fig. 13 illustrates a block diagram of a device 1300 suitable for implementing embodiments of the present disclosure. The device 1300 may be used to implement a communication device, such as the first communication device 110 or the second communication device 120 shown in fig. 1.
As shown, the device 1300 includes a controller 1310. The controller 1310 controls the operation and functions of the device 1300. For example, in certain embodiments, the controller 1310 may perform various operations by way of instructions 1330 stored in a memory 1320 coupled thereto. The memory 1320 may be of any suitable type suitable to the local technical environment and may be implemented using any suitable data storage technology, including but not limited to semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems. Although only a single memory unit is illustrated in FIG. 13, there may be multiple physically distinct memory units within the device 1300.
The controller 1310 may be of any suitable type suitable to the local technical environment, and may include, but is not limited to, one or more of a general purpose computer, a special purpose computer, a microcontroller, a digital signal controller (DSP), and a controller-based multi-core controller architecture. The device 1300 may also include a plurality of controllers 1310. The controller 1310 is coupled to a transceiver 1340 that may enable the transceiver 1340 to receive and transmit information via one or more antennas 1350 and/or other components.
The controller 1310 and the transceiver 1340 may cooperate to implement the methods 200 and 500 described above with reference to fig. 2-9 when the device 1300 is acting as the first communication device 110. The controller 1310 and the transceiver 1340 may cooperate to implement the method 1000 described above with reference to fig. 10 when the device 1300 is acting as the second communication device 120. All of the features described above with reference to fig. 1-10 apply to the apparatus 1300 and are not described in detail herein.
In general, the various example embodiments of this disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Certain aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While aspects of embodiments of the disclosure have been illustrated or described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that the blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
By way of example, embodiments of the disclosure may be described in the context of machine-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In various embodiments, the functionality of the program modules may be combined or divided between program modules as described. Machine-executable instructions for program modules may be executed within local or distributed devices. In a distributed facility, program modules may be located in both local and remote memory storage media.
Computer program code for implementing the methods of the present disclosure may be written in one or more programming languages. These computer program codes may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the computer or other programmable data processing apparatus, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. The program code may execute entirely on the computer, partly on the computer, as a stand-alone software package, partly on the computer and partly on a remote computer or entirely on the remote computer or server.
In the context of this disclosure, a machine-readable medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination thereof. More detailed examples of a machine-readable storage medium include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical storage device, a magnetic storage device, or any suitable combination thereof.
Additionally, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking or parallel processing may be beneficial. Likewise, while the above discussion contains certain specific implementation details, this should not be construed as limiting the scope of any invention or claims, but rather as describing particular embodiments that may be directed to particular inventions. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims (36)
1. A method of communication, comprising:
determining a first time window for transmitting at least a portion of the plurality of replicas of the signal;
transmitting at least a portion of the replica within the first time window; and
sending an indication associated with the first time window.
2. The method of claim 1, wherein determining the first time window comprises:
determining a reference time window; and
determining a first window length of the first time window based on a reference window length of the reference time window.
3. The method of claim 2, wherein determining the first window length based on the reference window length comprises:
determining a reference number of the replicas associated with the reference time window;
comparing the number of replicas to be transmitted within the first time window with the reference number; and
determining that the first window length is greater than the reference window length if the number of at least a portion of the replicas is greater than the reference number.
4. The method of claim 3, wherein determining the reference number comprises:
transmitting some of at least a portion of the replicas within the reference window; and determining the number of the duplicates that have been transmitted within the reference window as the reference number.
5. The method of claim 1, wherein sending the indication comprises:
sending the indication indicating at least one of: a first window length of the first time window and the signal transmitted within the first time window.
6. The method of claim 1, wherein sending the indication comprises:
determining whether another portion of the plurality of replicas is pending transmission after the first time window;
in response to determining that another portion of the replica is to be sent, determining a second time window for sending another portion of the replica; and
sending the indication indicating at least one of: the first time window is followed by the second time window and a second window length of the second time window.
7. The method of claim 1, wherein sending the indication comprises:
sending the indication with at least a portion of the copy within the first time window.
8. The method of claim 7, wherein sending the indication with at least a portion of the replication comprises:
generating a reference signal based on the indication if the signal to be transmitted comprises the reference signal; and
transmitting the at least a portion of the plurality of replicas of the generated reference signal within the first time window.
9. The method of claim 7, wherein sending the indication with at least a portion of the replication comprises:
generating a scrambling code based on the indication;
scrambling the signal to be transmitted using the generated scrambling code; and
transmitting the at least a portion of the plurality of replicas of the signal that has been scrambled within the first time window.
10. The method of claim 7, wherein sending the indication with at least a portion of the replication comprises:
transmitting the indication within a time period within the first time window for transmission of at least one of at least a portion of the replicas.
11. The method of claim 1, wherein sending the indication comprises:
transmitting the indication within an indicated time window subsequent to the first time window.
12. The method of claim 1, wherein sending the indication comprises:
the indication is sent with another signal associated with the signal.
13. A method of communication, comprising:
detecting an indication associated with a first time window within which at least a portion of a plurality of replicas of a signal has been transmitted;
determining the first time window based on the indication; and
determining the signal based at least in part on the replica received within the first time window.
14. The method of claim 13, wherein detecting the indication comprises:
detecting the indication indicating at least one of: a first window length of the first time window, the signal sent within the first time window, whether a second time window follows the first time window, a second window length of the second time window following the first time window.
15. The method of claim 14, further comprising:
in response to detecting the indication indicating at least one of: the first time window is followed by the second time window and the second window length of the second time window, and the second time window is determined based on the indication.
16. The method of claim 15, wherein determining the signal comprises:
determining the signal based at least in part on the replicas received within the first and second time windows.
17. The method of claim 13, wherein detecting the indication comprises:
detecting the replica of the signal to obtain the indication sent with the replica.
18. The method of claim 13, wherein detecting the indication comprises:
detecting another signal associated with the signal to obtain sending the indication with the other signal.
19. A communication device, comprising:
a controller configured to determine a first time window for transmitting at least a portion of a plurality of replicas of a signal; and
a transceiver configured to:
transmitting at least a portion of the replica within the first time window, an
Sending an indication associated with the first time window.
20. The device of claim 19, wherein the controller is configured to:
determining a reference time window; and
determining a first window length of the first time window based on a reference window length of the reference time window.
21. The device of claim 20, wherein the controller is configured to:
determining a reference number of the replicas associated with the reference time window;
comparing the number of replicas to be transmitted within the first time window with the reference number; and
determining that the first window length is greater than the reference window length if the number of at least a portion of the replicas is greater than the reference number.
22. The device of claim 21, wherein the controller is configured to:
transmitting some of at least a portion of the replicas within the reference window; and
determining the number of replicas that have been transmitted within the reference window as the reference number.
23. The device of claim 19, wherein the transceiver is configured to:
sending the indication indicating at least one of: a first window length of the first time window and the signal transmitted within the first time window.
24. The device of claim 19, wherein the controller is further configured to:
determining whether another portion of the plurality of replicas is pending transmission after the first time window, an
In response to determining that another portion of the replica is to be sent, determining a second time window for sending another portion of the replica; and is
The transceiver is configured to:
sending the indication indicating at least one of: the first time window is followed by the second time window and a second window length of the second time window.
25. The device of claim 19, wherein the transceiver is configured to:
sending the indication with at least a portion of the copy within the first time window.
26. The device of claim 25, wherein the controller is further configured to: generating a reference signal based on the indication if the signal to be transmitted comprises the reference signal; and is
Wherein the transceiver is configured to: transmitting the at least a portion of the plurality of replicas of the generated reference signal within the first time window.
27. The device of claim 25, wherein the controller is further configured to:
generating a scrambling code based on the indication, an
Scrambling the signal to be transmitted using the generated scrambling code; and wherein the transceiver is configured to:
transmitting the at least a portion of the plurality of replicas of the signal that has been scrambled within the first time window.
28. The device of claim 25, wherein the transceiver is configured to:
transmitting the indication within a time period within the first time window for transmission of at least one of at least a portion of the replicas.
29. The device of claim 19, wherein the transceiver is configured to:
transmitting the indication within an indicated time window subsequent to the first time window.
30. The device of claim 19, wherein the transceiver is configured to:
the indication is sent with another signal associated with the signal.
31. A communication device, comprising:
a transceiver configured to detect an indication associated with a first time window within which at least a portion of a plurality of replicas of a signal has been transmitted; and
a controller configured to:
determining the first time window based on the indication, an
Determining the signal based at least in part on the replica received within the first time window.
32. The device of claim 31, wherein the transceiver is configured to:
detecting the indication indicating at least one of: a first window length of the first time window, the signal sent within the first time window, whether a second time window follows the first time window, a second window length of the second time window following the first time window.
33. The device of claim 32, wherein the controller is further configured to:
in response to detecting the indication indicating at least one of: the first time window is followed by the second time window and the second window length of the second time window, and the second time window is determined based on the indication.
34. The device of claim 33, wherein the controller is configured to:
determining the signal based at least in part on the replicas received within the first and second time windows.
35. The device of claim 31, wherein the transceiver is configured to:
detecting the replica of the signal to obtain the indication sent with the replica.
36. The device of claim 31, wherein the transceiver is configured to:
detecting another signal associated with the signal to obtain sending the indication with the other signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255489.2A CN108270804B (en) | 2016-12-30 | 2016-12-30 | Communication method and communication device for the transmission of a replica of a signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255489.2A CN108270804B (en) | 2016-12-30 | 2016-12-30 | Communication method and communication device for the transmission of a replica of a signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108270804A CN108270804A (en) | 2018-07-10 |
| CN108270804B true CN108270804B (en) | 2021-02-09 |
Family
ID=62754197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611255489.2A Active CN108270804B (en) | 2016-12-30 | 2016-12-30 | Communication method and communication device for the transmission of a replica of a signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108270804B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831225A (en) * | 2018-08-08 | 2020-02-21 | 华为技术有限公司 | Method and device for transmitting signals |
| CN114930953A (en) * | 2020-03-04 | 2022-08-19 | Oppo广东移动通信有限公司 | Method for determining duplicate transmission resources, terminal equipment and network equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103339907A (en) * | 2011-02-08 | 2013-10-02 | 日本电信电话株式会社 | Wireless communication system, transmitter apparatus, receiver apparatus, and wireless communication method |
| CN104349484A (en) * | 2013-08-07 | 2015-02-11 | 电信科学技术研究院 | System information sending method, system information receiving method and device |
| CN106160967A (en) * | 2015-03-30 | 2016-11-23 | 中兴通讯股份有限公司 | The transmission method of a kind of unauthorized resource and device |
| WO2020093358A1 (en) * | 2018-11-09 | 2020-05-14 | Nokia Shanghai Bell Co., Ltd. | A method and apparatus for transmitting positioning measurement report |
-
2016
- 2016-12-30 CN CN201611255489.2A patent/CN108270804B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103339907A (en) * | 2011-02-08 | 2013-10-02 | 日本电信电话株式会社 | Wireless communication system, transmitter apparatus, receiver apparatus, and wireless communication method |
| CN104349484A (en) * | 2013-08-07 | 2015-02-11 | 电信科学技术研究院 | System information sending method, system information receiving method and device |
| CN106160967A (en) * | 2015-03-30 | 2016-11-23 | 中兴通讯股份有限公司 | The transmission method of a kind of unauthorized resource and device |
| WO2020093358A1 (en) * | 2018-11-09 | 2020-05-14 | Nokia Shanghai Bell Co., Ltd. | A method and apparatus for transmitting positioning measurement report |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108270804A (en) | 2018-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102287950B1 (en) | Determining timing for transmission or reception of signaling in a coverage enhanced operating mode | |
| EP3295601B1 (en) | Control channel transmission and frequency error correction | |
| US11057921B2 (en) | System and method for improving spectral efficiency and coverage for user equipments | |
| US10091763B2 (en) | Paging in coverage extension mode | |
| EP3098998B1 (en) | Method, base station and user equipment for physical control channel repeated transmission | |
| EP2704349B1 (en) | Adaptating a number of aggregation levels for control channel elements | |
| EP3020223B1 (en) | Method and apparatus for coverage enhancement for a random access process | |
| CN107534832B (en) | Method and apparatus for measuring D2D signal or selecting relay in wireless communication system | |
| US10779265B2 (en) | Terminal, base station, integrated circuit, and communication method | |
| US11240800B2 (en) | Method to determine the starting subframe of data channel | |
| CN104871468B (en) | Transmit encrypted communication and coding/decoding method | |
| KR20190035886A (en) | Method and apparatus for transmitting and receiving PSCCH and PSSCH of a terminal in a wireless communication system | |
| CN109076576B (en) | Terminal device, base station device, and communication method | |
| KR20160146947A (en) | A method and apparatus for transmitting uplink sounding reference signal | |
| KR20170128209A (en) | Transmissions of downlink control channels for low cost ues | |
| KR20180004404A (en) | Method and apparatus for repeated transmission of downlink data | |
| EP3133876B1 (en) | Terminal device, base-station device, integrated circuit, and communication method | |
| EP3113561B1 (en) | Terminal device, integrated circuit, and wireless communication method | |
| US11026184B2 (en) | Terminal apparatus, base station apparatus, and communication method for transmitting resource information and transmission power control information to the terminal device with a grant-free access resource allocation or a scheduled access resource allocation | |
| US9955385B2 (en) | Bundle size determination for narrowband communication | |
| CN110800226B (en) | Providing protection for information transmitted in demodulation reference signals (DMRS) | |
| EP3797481A1 (en) | Control channel mother code determination for multi-transmission configuration indication communication | |
| CN106162908B (en) | Method and device for transmitting scheduling request | |
| EP3639373A1 (en) | Synchronization signal for a broadcast channel | |
| US10298353B2 (en) | Method and device for receiving uplink signal using differential modulation scheme with interference cancellation and channel estimation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |